This notebook explores how collaborative relationships form between mailing list participants over time.

The hypothesis, loosely put, is that early exchanges are indicators of growing relationships or trust that should be reflected in information flow at later times.


In [2]:
%matplotlib inline

Next we'll import dependencies.


In [3]:
from bigbang.archive import Archive
import bigbang.parse as parse
import bigbang.graph as graph
import bigbang.mailman as mailman
import bigbang.process as process
import bigbang.twopeople as twoppl
import matplotlib.pyplot as plt
import networkx as nx
import numpy as np
import pandas as pd
from pprint import pprint as pp
import pytz
import math

Let's begin with just one mailing list to simplify.


In [4]:
url = "http://mail.python.org/piperpmail/scipy-dev/"
arx= Archive(url,archive_dir="../archives")

In [5]:
arx.data.irow(0).Body


Out[5]:
'The link:\n\nhttp://scipy.net/mailman/listinfo/scipy-dev\n\nyou may email to scipy-dev at scipy.net to post to the list.'

In [6]:
arx.data.shape


Out[6]:
(20474, 6)

Let's look at the matrix of who replies to whom over the whole history of the list, to get a sense of the overall distribution


In [7]:
arx.data[arx.data['In-Reply-To'] > 0][:10]


Out[7]:
From Subject Date In-Reply-To References Body
Message-ID
<Pine.LNX.4.33.0107231957590.15960-100000@oliphant.ee.byu.edu> oliphant at ee.byu.edu (Travis Oliphant) [SciPy-dev] RPMs and source distribution 2001-07-24 02:01:00 <02f001c111bf$2e78a9d0$777ba8c0@190xb01> None I've been playing for hours and finally have i...
<87snfmn8o1.fsf@jeeves.blindglobe.net> rossini at blindglobe.net (A.J. Rossini) [SciPy-dev] RPMs and source distribution 2001-07-24 06:27:42 <Pine.LNX.4.33.0107231957590.15960-100000@olip... <Pine.LNX.4.33.0107231957590.15960-100000@olip... >>>>> "TO" == Travis Oliphant <oliphant at ee....
<Pine.LNX.4.33.0107240041500.16169-100000@oliphant.ee.byu.edu> oliphant at ee.byu.edu (Travis Oliphant) [SciPy-dev] RPMs and source distribution 2001-07-24 06:46:36 <87snfmn8o1.fsf@jeeves.blindglobe.net> None > >>>>> "TO" == Travis Oliphant <oliphant at e...
<87itgisti1.fsf@jeeves.blindglobe.net> rossini at blindglobe.net (A.J. Rossini) [SciPy-dev] RPMs and source distribution 2001-07-24 06:58:46 <Pine.LNX.4.33.0107240041500.16169-100000@olip... <Pine.LNX.4.33.0107240041500.16169-100000@olip... >>>>> "TO" == Travis Oliphant <oliphant at ee....
<Pine.LNX.4.33.0108021551360.838-100000@sugar.ee.byu.edu> oliphant at ee.byu.edu (Travis Oliphant) [SciPy-dev] Spline module 2001-08-02 21:55:24 <200108021700.f72H03D17694@scipy.org> None >\n> Getting the new version of SciPy from CVS...
<200108031856.OAA29753@mud.cgl.uwaterloo.ca> tjlahey at mud.cgl.uwaterloo.ca (Tim Lahey) [SciPy-dev] Re: Splines module 2001-08-03 18:56:28 <200108031700.f73H01D31118@scipy.org> from "sc... None > \n> Date: Thu, 2 Aug 2001 15:55:24 -0600 (MD...
<87u1z1j90m.fsf@phantom.ecn.uiowa.edu> jmr at engineering.uiowa.edu (Joe Reinhardt) [SciPy-dev] RPMs and source distribution 2001-08-21 23:19:53 <87snfmn8o1.fsf@jeeves.blindglobe.net>\n (ross... <Pine.LNX.4.33.0107231957590.15960-100000@olip... Did this debian package ever materialize? \n...
<NEBBIECAMLMAAKHEGPCGCEKICMAA.travis@enthought.com> travis at scipy.org (Travis N. Vaught) [SciPy-dev] RPMs and source distribution 2001-08-22 03:44:22 <87u1z1j90m.fsf@phantom.ecn.uiowa.edu> None We haven't heard anything yet about a working ...
<87u1z01ef6.fsf@jeeves.blindglobe.net> rossini at blindglobe.net (A.J. Rossini) [SciPy-dev] RPMs and source distribution 2001-08-22 12:12:45 <NEBBIECAMLMAAKHEGPCGCEKICMAA.travis@enthought... <NEBBIECAMLMAAKHEGPCGCEKICMAA.travis@enthought... >>>>> "TNV" == Travis N Vaught <travis at scip...
<lg13d6klyt3.fsf@pet.ecn.uiowa.edu> jmr at engineering.uiowa.edu (Joe Reinhardt) [SciPy-dev] RPMs and source distribution 2001-08-22 18:44:24 <87u1z01ef6.fsf@jeeves.blindglobe.net>\n (ross... <NEBBIECAMLMAAKHEGPCGCEKICMAA.travis@enthought... rossini at blindglobe.net (A.J. Rossini) write...

In particular we are interested in who replied to who at each time. Recall that this is an open mailing list--everybody potentially reads each message. A response from A to B is an indication that A read B's original message. Therefore, a response indicates not just a single message from A to B, but an exchange from B to A and back again.

Below we modify our data to see who replied to whom.


In [8]:
messages = arx.data[['From']]

responses = arx.data[arx.data['In-Reply-To'] > 0][['From','Date','In-Reply-To']]

exchanges = pd.merge(messages,responses,how='inner',right_on='In-Reply-To',left_index=True,suffixes=['_original','_response'])

exchanges


Out[8]:
From_original From_response Date In-Reply-To
Message-ID
<87snfmn8o1.fsf@jeeves.blindglobe.net> oliphant at ee.byu.edu (Travis Oliphant) rossini at blindglobe.net (A.J. Rossini) 2001-07-24 06:27:42 <Pine.LNX.4.33.0107231957590.15960-100000@olip...
<Pine.LNX.4.33.0107240041500.16169-100000@oliphant.ee.byu.edu> rossini at blindglobe.net (A.J. Rossini) oliphant at ee.byu.edu (Travis Oliphant) 2001-07-24 06:46:36 <87snfmn8o1.fsf@jeeves.blindglobe.net>
<87itgisti1.fsf@jeeves.blindglobe.net> oliphant at ee.byu.edu (Travis Oliphant) rossini at blindglobe.net (A.J. Rossini) 2001-07-24 06:58:46 <Pine.LNX.4.33.0107240041500.16169-100000@olip...
<NEBBIECAMLMAAKHEGPCGCEKICMAA.travis@enthought.com> jmr at engineering.uiowa.edu (Joe Reinhardt) travis at scipy.org (Travis N. Vaught) 2001-08-22 03:44:22 <87u1z1j90m.fsf@phantom.ecn.uiowa.edu>
<87u1z01ef6.fsf@jeeves.blindglobe.net> travis at scipy.org (Travis N. Vaught) rossini at blindglobe.net (A.J. Rossini) 2001-08-22 12:12:45 <NEBBIECAMLMAAKHEGPCGCEKICMAA.travis@enthought...
<20010927164848.Q1356@dothill.com> jochen at unc.edu (Jochen =?iso-8859-1?q?K=FCp... jason at tishler.net (Jason Tishler) 2001-09-27 20:48:48 <86d74cr9q2.fsf@bock.chem.unc.edu>
<86g097pgqt.fsf@bock.chem.unc.edu> jochen at unc.edu (Jochen =?iso-8859-1?q?K=FCp... jochen at jochen-kuepper.de (Jochen =?iso-8859... 2001-09-28 14:48:13 <86d74cr9q2.fsf@bock.chem.unc.edu>
<Pine.LNX.4.21.0109271959570.22161-100000@cens.ioc.ee> oliphant at ee.byu.edu (Travis Oliphant) pearu at cens.ioc.ee (Pearu Peterson) 2001-09-27 18:10:57 <Pine.LNX.4.33.0109271117580.25675-100000@olip...
<Pine.LNX.4.21.0109272015040.22161-100000@cens.ioc.ee> pearu at cens.ioc.ee (Pearu Peterson) pearu at cens.ioc.ee (Pearu Peterson) 2001-09-27 18:16:32 <Pine.LNX.4.21.0109271959570.22161-100000@cens...
<20010927124852.A18567@myrddin.caltech.edu> pearu at cens.ioc.ee (Pearu Peterson) kern at caltech.edu (Robert Kern) 2001-09-27 19:48:52 <Pine.LNX.4.21.0109271959570.22161-100000@cens...
<20010928135700.X1356@dothill.com> jochen at jochen-kuepper.de (Jochen =?iso-8859... jason at tishler.net (Jason Tishler) 2001-09-28 17:57:00 <86g097pgqt.fsf@bock.chem.unc.edu>
<Pine.LNX.4.21.0109281946030.31117-100000@cens.ioc.ee> jochen at jochen-kuepper.de (Jochen =?iso-8859... pearu at cens.ioc.ee (Pearu Peterson) 2001-09-28 18:03:10 <86g097pgqt.fsf@bock.chem.unc.edu>
<20010930214531.16525.qmail@lisboa.ifm.uni-kiel.de> wsryu at fas.harvard.edu (William Ryu) jhauser at ifm.uni-kiel.de (Janko Hauser) 2001-09-30 21:45:31 <5.1.0.14.2.20010930132153.00a7beb8@pop.fas.ha...
<KPEIKEPEIBGNGNKHDILIEEEPCEAA.travis@enthought.com> python at lee-morgan.net (python at lee-morgan... travis at scipy.org (Travis N. Vaught) 2001-10-11 15:22:01 <wkofnegqee.fsf@lee-morgan.net>
<DGEHJAIMAIENCEHBIHCJAEGACIAA.altis@semi-retired.com> travis at scipy.org (Travis N. Vaught) altis at semi-retired.com (Kevin Altis) 2001-10-11 17:29:01 <KPEIKEPEIBGNGNKHDILIEEEPCEAA.travis@enthought...
<m3pu7c2z8g.fsf@box.home.de> altis at semi-retired.com (Kevin Altis) jochen at jochen-kuepper.de (Jochen =?iso-8859... 2001-10-25 03:08:15 <DGEHJAIMAIENCEHBIHCJEEJFCIAA.altis@semi-retir...
<m37ktl3kfu.fsf@box.home.de> ejones17 at austin.rr.com (ERIC JONES) jochen at jochen-kuepper.de (Jochen =?iso-8859... 2001-10-24 01:17:57 <033501c15bd7$87062e30$777ba8c0@ericlaptop>
<m3elns2vkw.fsf_-_@box.home.de> ejones17 at austin.rr.com (eric jones) jochen at jochen-kuepper.de (Jochen =?iso-8859... 2001-10-25 04:27:11 <000b01c15cd1$8755c530$6600a8c0@ericlaptop>
<87vgh3lvh8.fsf@jeeves.blindglobe.net> jochen at jochen-kuepper.de (Jochen =?iso-8859... rossini at blindglobe.net (A.J. Rossini) 2001-10-25 13:06:43 <m3pu7c2z8g.fsf@box.home.de>
<DGEHJAIMAIENCEHBIHCJCEHHCJAA.altis@semi-retired.com> rossini at blindglobe.net (A.J. Rossini) altis at semi-retired.com (Kevin Altis) 2001-10-25 16:08:00 <87vgh3lvh8.fsf@jeeves.blindglobe.net>
<m3zo6fulnt.fsf@box.home.de> ejones17 at austin.rr.com (eric jones) jochen at jochen-kuepper.de (Jochen =?iso-8859... 2001-10-26 03:26:14 <005e01c15d58$d09845b0$c400a8c0@ericlaptop>
<86elnqp57e.fsf@bock.chem.unc.edu> eric at scipy.org (eric jones) jochen at unc.edu (Jochen =?iso-8859-1?q?K=FCp... 2001-10-26 19:32:53 <028501c15e32$b479c720$c400a8c0@ericlaptop>
<KPEIKEPEIBGNGNKHDILIEEACCFAA.travis@enthought.com> jochen at unc.edu (Jochen =?iso-8859-1?q?K=FCp... travis at scipy.org (Travis N. Vaught) 2001-10-29 21:00:09 <868zdu4219.fsf@bock.chem.unc.edu>
<86snc22gth.fsf@bock.chem.unc.edu> travis at scipy.org (Travis N. Vaught) jochen at unc.edu (Jochen =?iso-8859-1?q?K=FCp... 2001-10-29 22:59:38 <KPEIKEPEIBGNGNKHDILIEEACCFAA.travis@enthought...
<87zo66mpir.fsf@jeeves.blindglobe.net> jochen at unc.edu (Jochen =?iso-8859-1?q?K=FCp... rossini at blindglobe.net (A.J. Rossini) 2001-11-01 16:20:28 <864roeija9.fsf@bock.chem.unc.edu>
<87u1w9qhy9.fsf@jeeves.blindglobe.net> eric at scipy.org (eric) rossini at blindglobe.net (A.J. Rossini) 2001-11-05 16:51:42 <060301c16609$ec43a700$777ba8c0@ericlaptop>
<Pine.GSO.3.96.1011105125110.2400K-100000@bucky.nmr.mgh.harvard.edu> eric at scipy.org (eric) strang at nmr.mgh.harvard.edu (Gary Strangman) 2001-11-05 18:15:09 <060301c16609$ec43a700$777ba8c0@ericlaptop>
<5.1.0.14.0.20011106122104.02e93420@localhost> eric at scipy.org (eric) magnus at thinkware.se (Magnus =?iso-8859-1?Q?... 2001-11-06 11:40:53 <062f01c1660b$87b2f410$777ba8c0@ericlaptop>
<5.1.0.14.0.20011109121855.0211c178@localhost> eric at scipy.org (eric) magnus at thinkware.se (Magnus =?iso-8859-1?Q?... 2001-11-09 12:35:46 <086c01c166d4$7d8e9240$777ba8c0@ericlaptop>
<5.1.0.14.0.20011109175409.02126880@localhost> eric at scipy.org (eric) magnus at thinkware.se (Magnus =?iso-8859-1?Q?... 2001-11-09 17:12:30 <012901c16930$ee3d5c70$c300a8c0@ericlaptop>
... ... ... ... ...
<CAOyNq8q-wUNdfca+2v6FOAGEzj5-kre3_Bcv2awEzFNiQqtJFw@mail.gmail.com> gdmcbain@freeshell.... (Geordie McBain) benny.malengier@gmail.... (Benny Malengier) 2015-03-17 09:26:45 <CAB0gBH24TV9AFRXr07jafp=uahHssEVcz2MWAGkaV4p-...
<5507FE1D.7030503@dameweb.de> benny.malengier@gmail.... (Benny Malengier) max.mail@dameweb... (Max Mertens) 2015-03-17 10:12:45 <CAOyNq8q-wUNdfca+2v6FOAGEzj5-kre3_Bcv2awEzFNi...
<CAOyNq8odmVzN-QpAEeOaZzJCqzNnbx=E5n3Qvca8bbE_ZGf7EQ@mail.gmail.com> max.mail@dameweb... (Max Mertens) benny.malengier@gmail.... (Benny Malengier) 2015-03-17 11:09:57 <5507FE1D.7030503@dameweb.de>
<550AB0AD.90902@dameweb.de> benny.malengier@gmail.... (Benny Malengier) max.mail@dameweb... (Max Mertens) 2015-03-19 11:19:09 <CAOyNq8odmVzN-QpAEeOaZzJCqzNnbx=E5n3Qvca8bbE_...
<CAGboH+Gwgf0Z11X5Hid8cNhCPTvcJUV_4S69ow+VbBhrnbKdQg@mail.gmail.com> rlucente@pipeline.... (Robert Lucente - Pipeline) ilidrissiamine@gmail.... (Amine Ilidrissi) 2015-03-19 21:08:57 <017e01d06117$e456a4d0$ad03ee70$@pipeline.com>
<8114F0AADAECD745AF1FC2047A5DC7ED1E96AA38@HBU-POST2.ffi.no> maniteja.modesty067@gmail.... (Maniteja Nandana) Per.Brodtkorb@f... (Per.Brodtkorb@f...) 2015-03-19 13:59:24 <CAAdDC+coF-47ssBk7OoJXqLHNVvGGc=5MkMbRGFA5OSA...
<CAJ_+_pUr7vNRSD0qAzuzfsYuVVF8=s8gseWudQGtsCN0vnmimA@mail.gmail.com> anastasiyatsyplya@gmail.... (Anastasiia Tsyplia) anastasiyatsyplya@gmail.... (Anastasiia Tsyplia) 2015-03-21 21:31:27 <CAJ_+_pX4Wk5TLJvfLbMZqW6PJASUphGmRCZBL1oFXEqV...
<CAAdDC+fzv_EYUm_Awrc-iYd4ftnwbBH-DtHSjbXeJD7dAO0wFw@mail.gmail.com> Per.Brodtkorb@f... (Per.Brodtkorb@f...) maniteja.modesty067@gmail.... (Maniteja Nandana) 2015-03-23 02:12:26 <8114F0AADAECD745AF1FC2047A5DC7ED1E96AA38@HBU-...
<mei27t$1t2$1@ger.gmane.org> will@wtadler.... (Will Adler) pav@iki... (Pauli Virtanen) 2015-03-20 21:08:13 <CA091F6E-16F1-4B51-841C-709C0564B233@wtadler....
<550C990E.4040900@googlemail.com> pav@iki... (Pauli Virtanen) jtaylor.debian@googlemail.... (Julian Taylor) 2015-03-20 22:02:54 <mei27t$1t2$1@ger.gmane.org>
<CAMcnTE7L+r-MFrFoqd0w1_qHp5XDqHnYa-QeHj4bT8JoOdM2_g@mail.gmail.com> jtaylor.debian@googlemail.... (Julian Taylor) travis@continuum... (Travis Oliphant) 2015-03-21 04:13:37 <550C990E.4040900@googlemail.com>
<9B440EE8-7C89-4961-BFB3-5E98D86801ED@gmail.com> travis@continuum... (Travis Oliphant) gregor.thalhammer@gmail.... (Gregor Thalhammer) 2015-03-21 09:49:21 <CAMcnTE7L+r-MFrFoqd0w1_qHp5XDqHnYa-QeHj4bT8Jo...
<550D515C.1050406@googlemail.com> travis@continuum... (Travis Oliphant) jtaylor.debian@googlemail.... (Julian Taylor) 2015-03-21 11:09:16 <CAMcnTE7L+r-MFrFoqd0w1_qHp5XDqHnYa-QeHj4bT8Jo...
<55130A5E.6070108@hilboll.de> anastasiyatsyplya@gmail.... (Anastasiia Tsyplia) lists@hilboll... (Andreas Hilboll) 2015-03-25 19:19:58 <CAJ_+_pUr7vNRSD0qAzuzfsYuVVF8=s8gseWudQGtsCN0...
<CAAdDC+dKqHODoMigsaok5b+pW__8QBFWC9+KDkGAr8FTpvhREQ@mail.gmail.com> maniteja.modesty067@gmail.... (Maniteja Nandana) maniteja.modesty067@gmail.... (Maniteja Nandana) 2015-03-25 18:59:21 <CAAdDC+fzv_EYUm_Awrc-iYd4ftnwbBH-DtHSjbXeJD7d...
<CABL7CQg9t-smPd7XAssGQFnoFH5PBETv=d8W0sdmNm_xLDrCSg@mail.gmail.com> aeklant@gmail.... (Abraham Escalante) ralf.gommers@gmail.... (Ralf Gommers) 2015-03-23 21:47:33 <CAJJ-iFngKbCZNXh6AncSJ+kCbmH9Oh0yzTd8Rzuv+NQj...
<CABL7CQgtW3aOrdGbihxLgDXYEn3iYs6QyHOmtS3dDgEfSPRD2g@mail.gmail.com> ralf.gommers@gmail.... (Ralf Gommers) ralf.gommers@gmail.... (Ralf Gommers) 2015-03-27 09:58:11 <CABL7CQi2m2OEviLkxi1TLmnyVdP3Zfas-c3mff0f+Y=z...
<CABL7CQggb8XxMpH3cbfONuemOShrUJfjgpjDUC77yt4PvK-eXA@mail.gmail.com> insertinterestingnamehere@gmail.... (Ian Henri... ralf.gommers@gmail.... (Ralf Gommers) 2015-03-24 20:54:17 <CAPWbfpQfsPcgdjfOF3VE29HGcNcvareKL5AkvSwUdJTw...
<CAAbtOZczJ_YqAan42j5ybESBoCNzXnSH3iZO3k0quNWVPGNS9g@mail.gmail.com> zunzun@zunzun.... (James Phillips) andyfaff@gmail.... (Andrew Nelson) 2015-03-25 08:50:00 <CAH7vTe1c+31hVLq2_HKA3nuddrDZ84WXtrifRJXXSVUd...
<CAH7vTe1vAxQFxgGeAGa2A_UpxbHJBYkjOiF=43S-Vt0ga+1r+A@mail.gmail.com> zunzun@zunzun.... (James Phillips) zunzun@zunzun.... (James Phillips) 2015-03-25 12:45:31 <CAH7vTe1c+31hVLq2_HKA3nuddrDZ84WXtrifRJXXSVUd...
<CAH7vTe0iQhzh2BxdqfFwGFwArJ=Lvb5s1iCi1yZ084UeStsbeg@mail.gmail.com> andyfaff@gmail.... (Andrew Nelson) zunzun@zunzun.... (James Phillips) 2015-03-25 09:16:46 <CAAbtOZczJ_YqAan42j5ybESBoCNzXnSH3iZO3k0quNWV...
<CAH7vTe0StDYHz6fPJDvVRFgMUS9PxQ98jmEfcNu6=ZY4hnG7qA@mail.gmail.com> zunzun@zunzun.... (James Phillips) zunzun@zunzun.... (James Phillips) 2015-03-25 09:45:00 <CAH7vTe0iQhzh2BxdqfFwGFwArJ=Lvb5s1iCi1yZ084Ue...
<CAH7vTe0gQTor3YV+XC=L4P1_OKDGW_yVXr8LyZs2CCpyo6R11g@mail.gmail.com> zunzun@zunzun.... (James Phillips) zunzun@zunzun.... (James Phillips) 2015-03-27 14:47:19 <CAH7vTe1vAxQFxgGeAGa2A_UpxbHJBYkjOiF=43S-Vt0g...
<CABL7CQi=LSZrTQDqvztDNMyLTpW_BnLA+vvJBnHGenfjBMLkYw@mail.gmail.com> maniteja.modesty067@gmail.... (Maniteja Nandana) ralf.gommers@gmail.... (Ralf Gommers) 2015-03-25 19:19:05 <CAAdDC+dKqHODoMigsaok5b+pW__8QBFWC9+KDkGAr8FT...
<CAJ_+_pXjDBKf570Y7S5BhAm2=z5NFY-cZ_YJx9ejTV8vjJ7oPw@mail.gmail.com> lists@hilboll... (Andreas Hilboll) anastasiyatsyplya@gmail.... (Anastasiia Tsyplia) 2015-03-28 11:23:20 <55130A5E.6070108@hilboll.de>
<CAJJ-iFmeQZsAPDkUw7RZe87ZwtCqY11U4xwd_PyOfyjBLvAedA@mail.gmail.com> levelfourslv@gmail.... (Fukumu Tsutsumi) aeklant@gmail.... (Abraham Escalante) 2015-03-26 16:41:26 <CAOZFvpQM7Yh1CznK+z3QhgBhnV10zeCq_3x+U1JAYghN...
<CAOZFvpTk3pFBGbVn3Ru5CeDj3zEio7sdHGiXhUb9WW6bJrGiog@mail.gmail.com> aeklant@gmail.... (Abraham Escalante) levelfourslv@gmail.... (Fukumu Tsutsumi) 2015-03-27 15:29:46 <CAJJ-iFmeQZsAPDkUw7RZe87ZwtCqY11U4xwd_PyOfyjB...
<CAH7vTe2u_=C_yzFyrSBg3MN9a=oBtEWhB0ufQzEwh911=guw_w@mail.gmail.com> zunzun@zunzun.... (James Phillips) zunzun@zunzun.... (James Phillips) 2015-03-30 02:16:39 <CAH7vTe0gQTor3YV+XC=L4P1_OKDGW_yVXr8LyZs2CCpy...
<CAJJ-iFnvQ=jWL+tOjkwr4mC60=vy9SbP3+qgHZ1Y=3zuHFSkJQ@mail.gmail.com> levelfourslv@gmail.... (Fukumu Tsutsumi) aeklant@gmail.... (Abraham Escalante) 2015-03-27 17:26:02 <CAOZFvpTk3pFBGbVn3Ru5CeDj3zEio7sdHGiXhUb9WW6b...
<CAOZFvpQhS5seDyQVf51pUzPL+0u7XmyYeBzYCkTieCTyW=CuzA@mail.gmail.com> aeklant@gmail.... (Abraham Escalante) levelfourslv@gmail.... (Fukumu Tsutsumi) 2015-03-27 19:55:35 <CAJJ-iFnvQ=jWL+tOjkwr4mC60=vy9SbP3+qgHZ1Y=3zu...

14264 rows × 4 columns


In [9]:
exchanges.groupby(['From_original','From_response']).count()


Out[9]:
Date In-Reply-To
From_original From_response
00ai99@gmail.... (David Gowers (kampu)) gael.varoquaux@normalesup.... (Gael Varoquaux) 1 1
14366037@sun.ac... (Gouws, Almero <14366037@sun.ac.za>) ed@lamedomain.... (Ed Rahn) 1 1
matthieu.brucher@gmail.... (Matthieu Brucher) 1 1
14772361@sun.ac... (Hamman, RA, Mr <14772361@sun.ac.za>) d.l.goldsmith@gmail.... (David Goldsmith) 1 1
josh.holbrook@gmail.... (Joshua Holbrook) 1 1
Adam.Raczkowski@tufts.... (AJ Raczkowski) stefan@sun.ac... (=?ISO-8859-1?Q?St=E9fan_van_der_Walt?=) 1 1
Alex.Perry at ge.com (Perry, Alexander (GE Infrastructure)) oliphant at ee.byu.edu (Travis Oliphant) 1 1
rkern at ucsd.edu (Robert Kern) 2 2
Andreas.Floeter@web... (Andreas =?iso-8859-1?q?Fl=F6ter?=) kamrik@gmail.... (Mark Koudritsky) 1 1
Balazs.Nemeth at shaw.ca (Balazs Nemeth) cookedm at physics.mcmaster.ca (David M. Cooke) 1 1
Bernhard.Hoefle at uibk.ac.at (Bernhard Reimar Hoefle) robert.kern at gmail.com (Robert Kern) 1 1
Brian.Newsom@Colorado.... (Brian Lee Newsom) charlesnwoods@gmail.... (Gmail) 1 1
charlesnwoods@gmail.... (Nathan Woods) 2 2
pav@iki... (Pauli Virtanen) 2 2
Chris.Barker at noaa.gov (Chris Barker) fperez at colorado.edu (Fernando Perez) 1 1
Chris.Fonnesbeck at MyFWC.com (Fonnesbeck, Chris) perry at stsci.edu (Perry Greenfield) 1 1
Chuck.Harris at sdl.usu.edu (Chuck Harris) clee at spiralis.merseine.nu (clee at spiralis.merseine.nu) 1 1
falted at openlc.org (Francesc Alted) 1 1
jochen at jochen-kuepper.de (Jochen =?iso-8859-1?q?K=FCpper?=) 1 1
jochen at unc.edu (Jochen =?iso-8859-1?q?K=FCpper?=) 1 1
oliphant at ee.byu.edu (Travis Oliphant) 7 7
oliphant.travis at ieee.org (Travis Oliphant) 3 3
pearu at cens.ioc.ee (Pearu Peterson) 5 5
pearu at scipy.org (Pearu Peterson) 2 2
pearu at scipy.org (pearu at scipy.org) 8 8
D.J.Baker@soton.ac... (Baker D.J.) scipy@samueljohn... (Samuel John) 1 1
DavidA at ActiveState.com (David Ascher) joe at enthought.com (Joe Cooper) 1 1
pearu at cens.ioc.ee (Pearu Peterson) 1 1
perry at stsci.edu (Perry Greenfield) 1 1
Deil.Christoph@googlemail.... (Christoph Deil) charlesr.harris@gmail.... (Charles R Harris) 1 1
... ... ... ...
zachary.pincus@yale.... (Zachary Pincus) jtravs@gmail.... (John Travers) 1 1
mellerf@netvision.net... (Yosef Meller) 1 1
millman@berkeley.... (Jarrod Millman) 1 1
pav@iki... (Pauli Virtanen) 2 2
stefan@sun.ac... (=?ISO-8859-1?Q?St=E9fan_van_der_Walt?=) 1 1
sturla@molden... (Sturla Molden) 1 1
thouis@broad.mit.... (Thouis (Ray) Jones) 4 4
travis@continuum... (Travis Oliphant) 1 1
zbyszek@in.waw... (Zbyszek Szmek) zbyszek@in.waw... (Zbyszek Szmek) 1 1
zephyr14@gmail.... (Vlad Niculae) aia8v@virginia.... (alex arsenovic) 1 1
zpincus at stanford.edu (Zachary Pincus) jtravs at gmail.com (John Travers) 1 1
oliphant at ee.byu.edu (Travis Oliphant) 2 2
robert.kern at gmail.com (Robert Kern) 3 3
schofield at ftw.at (Ed Schofield) 2 2
zpincus@stanford.... (Zachary Pincus) jtravs@gmail.... (John Travers) 3 3
matthieu.brucher@gmail.... (Matthieu Brucher) 2 2
robert.kern@gmail.... (Robert Kern) 2 2
zufus at zufus.org (Marco Presi) haase at msg.ucsf.edu (Sebastian Haase) 1 1
oliphant at ee.byu.edu (Travis Oliphant) 1 1
zufus@zufus.... (Marco Presi) stefan@sun.ac... (Stefan van der Walt) 2 2
zunzun@zunzun.... (James Phillips) alan.isaac@gmail.... (Alan G Isaac) 2 2
andyfaff@gmail.... (Andrew Nelson) 1 1
charlesr.harris@gmail.... (Charles R Harris) 1 1
josef.pktd@gmai... (josef.pktd@gmai...) 12 12
jsseabold@gmail.... (Skipper Seabold) 3 3
pav@iki... (Pauli Virtanen) 1 1
zunzun@zunzun.... (James Phillips) 13 13
zw4131@gmail.... (=?GB2312?B?va20886w?=) josef.pktd@gmai... (josef.pktd@gmai...) 1 1
ralf.gommers@googlemail.... (Ralf Gommers) 2 2
zxd@bu.... (Xuedong Zhang) david@ar.media.kyoto-u.ac... (David Cournapeau) 1 1

5579 rows × 2 columns

The next step is to create a DataFrame that for each pair A and B:

  • The duration of time between the first reply between that pair and the last.
  • The total number of replies from A to B, $r_{AB}$, and from B to A, $r_{BA}$.
  • The reciprocity of the conversation $min(r_{AB},r_{BA})/max(r_{AB},r_{BA})$

Using the exchanges data frame we can use the functions in twopeople.py to calculate the above quantities. The cell below gives a sample output for calculating duration, number of replies, and reciprocity for two specific contributers.


In [10]:
twoppl.duration(exchanges, "oliphant at ee.byu.edu (Travis Oliphant)", "rossini at blindglobe.net (A.J. Rossini)"  )
twoppl.panda_pair(exchanges, "oliphant at ee.byu.edu (Travis Oliphant)", "rossini at blindglobe.net (A.J. Rossini)"  )


Out[10]:
A B duration num_replies reciprocity
0 oliphant at ee.byu.edu (Travis Oliphant) rossini at blindglobe.net (A.J. Rossini) 465 days 14:33:48 4 0.333333

The "duration" column gives us a datetime data structure so we must be careful later on when extracting information from this column.


In [11]:
twoppl.duration(exchanges, "oliphant at ee.byu.edu (Travis Oliphant)", "rossini at blindglobe.net (A.J. Rossini)"  )


Out[11]:
Timedelta('465 days 14:33:48')

Now let's create a dataframe that consists of these three quantities (duration, number of replies, and reciprocity) for each pair of contributers who interacted.

To get all the unique pairs we can use the unique_pairs function in twopeople.py. This willl give us all pairs between any two individuals who had some degree of interation.

Note: The unique pairs we get back do not include reversed pairs. For example, if one of the pairs was ("Bob", "Mary"), we would not have ("Mary", "Bob") in our output.


In [12]:
pairs = twoppl.unique_pairs(exchanges)
pairs


Out[12]:
{('00ai99@gmail.... (David Gowers (kampu))',
  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
 ('14366037@sun.ac... (Gouws, Almero <14366037@sun.ac.za>)',
  'ed@lamedomain.... (Ed Rahn)'),
 ('14366037@sun.ac... (Gouws, Almero <14366037@sun.ac.za>)',
  'matthieu.brucher@gmail.... (Matthieu Brucher)'),
 ('14772361@sun.ac... (Hamman, RA, Mr <14772361@sun.ac.za>)',
  'd.l.goldsmith@gmail.... (David Goldsmith)'),
 ('14772361@sun.ac... (Hamman, RA, Mr <14772361@sun.ac.za>)',
  'josh.holbrook@gmail.... (Joshua Holbrook)'),
 ('Adam.Raczkowski@tufts.... (AJ Raczkowski)',
  'stefan@sun.ac... (=?ISO-8859-1?Q?St=E9fan_van_der_Walt?=)'),
 ('Alex.Perry at ge.com (Perry, Alexander (GE Infrastructure))',
  'oliphant at ee.byu.edu (Travis Oliphant)'),
 ('Alex.Perry at ge.com (Perry, Alexander (GE Infrastructure))',
  'rkern at ucsd.edu (Robert Kern)'),
 ('Andreas.Floeter@web... (Andreas =?iso-8859-1?q?Fl=F6ter?=)',
  'kamrik@gmail.... (Mark Koudritsky)'),
 ('Balazs.Nemeth at shaw.ca (Balazs Nemeth)',
  'cookedm at physics.mcmaster.ca (David M. Cooke)'),
 ('Bernhard.Hoefle at uibk.ac.at (Bernhard Reimar Hoefle)',
  'robert.kern at gmail.com (Robert Kern)'),
 ('Brian.Newsom@Colorado.... (Brian Lee Newsom)',
  'charlesnwoods@gmail.... (Gmail)'),
 ('Brian.Newsom@Colorado.... (Brian Lee Newsom)',
  'charlesnwoods@gmail.... (Nathan Woods)'),
 ('Brian.Newsom@Colorado.... (Brian Lee Newsom)',
  'pav@iki... (Pauli Virtanen)'),
 ('Chris.Barker at noaa.gov (Chris Barker)',
  'fperez at colorado.edu (Fernando Perez)'),
 ('Chris.Fonnesbeck at MyFWC.com (Fonnesbeck, Chris)',
  'perry at stsci.edu (Perry Greenfield)'),
 ('Chuck.Harris at sdl.usu.edu (Chuck Harris)',
  'clee at spiralis.merseine.nu (clee at spiralis.merseine.nu)'),
 ('Chuck.Harris at sdl.usu.edu (Chuck Harris)',
  'falted at openlc.org (Francesc Alted)'),
 ('Chuck.Harris at sdl.usu.edu (Chuck Harris)',
  'jochen at jochen-kuepper.de (Jochen =?iso-8859-1?q?K=FCpper?=)'),
 ('Chuck.Harris at sdl.usu.edu (Chuck Harris)',
  'jochen at unc.edu (Jochen =?iso-8859-1?q?K=FCpper?=)'),
 ('Chuck.Harris at sdl.usu.edu (Chuck Harris)',
  'oliphant at ee.byu.edu (Travis Oliphant)'),
 ('Chuck.Harris at sdl.usu.edu (Chuck Harris)',
  'oliphant.travis at ieee.org (Travis Oliphant)'),
 ('Chuck.Harris at sdl.usu.edu (Chuck Harris)',
  'pearu at cens.ioc.ee (Pearu Peterson)'),
 ('Chuck.Harris at sdl.usu.edu (Chuck Harris)',
  'pearu at scipy.org (Pearu Peterson)'),
 ('Chuck.Harris at sdl.usu.edu (Chuck Harris)',
  'pearu at scipy.org (pearu at scipy.org)'),
 ('D.J.Baker@soton.ac... (Baker D.J.)', 'scipy@samueljohn... (Samuel John)'),
 ('DavidA at ActiveState.com (David Ascher)',
  'joe at enthought.com (Joe Cooper)'),
 ('DavidA at ActiveState.com (David Ascher)',
  'pearu at cens.ioc.ee (Pearu Peterson)'),
 ('DavidA at ActiveState.com (David Ascher)',
  'perry at stsci.edu (Perry Greenfield)'),
 ('Deil.Christoph@googlemail.... (Christoph Deil)',
  'charlesr.harris@gmail.... (Charles R Harris)'),
 ('Deil.Christoph@googlemail.... (Christoph Deil)',
  'denis.laxalde@mcgill... (Denis Laxalde)'),
 ('Doug.LATORNELL at mdsinc.com (LATORNELL, Doug)',
  'robert.kern at gmail.com (Robert Kern)'),
 ('Dwf@cs.toronto.... (David Warde-Farley)',
  'david@ar.media.kyoto-u.ac... (David Cournapeau)'),
 ('Dwf@cs.toronto.... (David Warde-Farley)',
  'robert.kern@gmail.... (Robert Kern)'),
 ('Eric.Buehler at smiths-aerospace.com (Buehler, Eric (AGRE))',
  'oliphant.travis at ieee.org (Travis Oliphant)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'Fernando.Perez at colorado.edu (Fernando Perez)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'M.Reimpell at tu-bs.de (Michael Reimpell)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'aisaac at american.edu (Alan G Isaac)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'bgoli at sun.ac.za (Brett Olivier)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'bulatov at cs.orst.edu (bulatov at cs.orst.edu)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'charles.harris at sdl.usu.edu (Charles R Harris)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'charlesr.harris at gmail.com (Charles R Harris)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'chris at fisher.forestry.uga.edu (Christopher Fonnesbeck)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'eric at enthought.com (eric jones)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'eric at enthought.com (eric_imap)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'golux at comcast.net (Stephen C. Waterbury)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'guyer at nist.gov (Jonathan Guyer)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'joe at enthought.com (Joe Cooper)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'kamrik at gmail.com (Mark Koudritsky)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'oliphant.travis at ieee.org (Travis E. Oliphant)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'oliphant.travis at ieee.org (Travis Oliphant)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'pearu at scipy.org (Pearu Peterson)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'ravi at ati.com (Ravikiran Rajagopal)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'schofield at ftw.at (Ed Schofield)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'stefan at sun.ac.za (Stefan van der Walt)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'steve at shrogers.com (Steven H. Rogers)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'swisher at enthought.com (Janet Swisher)'),
 ('Fernando.Perez at colorado.edu (Fernando Perez)',
  'travis at enthought.com (Travis N. Vaught)'),
 ('Fernando.Perez at colorado.edu (Fernando.Perez at colorado.edu)',
  'pearu at scipy.org (Pearu Peterson)'),
 ('Giovanni.Samaey at cs.kuleuven.ac.be (Giovanni Samaey)',
  'pearu at scipy.org (Pearu Peterson)'),
 ('HAWRYLA@novachem.... (Andrew Hawryluk)',
  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
 ('HAWRYLA@novachem.... (Andrew Hawryluk)',
  'josef.pktd@gmai... (josef.pktd@gmai...)'),
 ('HAWRYLA@novachem.... (Andrew Hawryluk)',
  'stefan@sun.ac... (=?ISO-8859-1?Q?St=E9fan_van_der_Walt?=)'),
 ('HAWRYLA@novachem.... (Andrew Hawryluk)',
  'vanforeest@gmail.... (nicky van foreest)'),
 ('JDM@MarchRay.... (Jonathan March)',
  'd.l.goldsmith@gmail.... (David Goldsmith)'),
 ('JDM@MarchRay.... (Jonathan March)',
  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
 ('Jiri.Krtek@rsj.... (Jiri Krtek)', 'richard9404@gmail.... (Richard Tsai)'),
 ('Kasper.Souren at ircam.fr (Kasper Souren)',
  'eric at enthought.com (eric jones)'),
 ('Kasper.Souren at ircam.fr (Kasper Souren)',
  'pearu at cens.ioc.ee (Pearu Peterson)'),
 ('Linda.Gilbert@WPAFB.AF.... (Gilbert, Linda M CTR USAF AFRL/RXOC)',
  'dalcinl@gmail.... (Lisandro Dalcin)'),
 ('Linda.Gilbert@WPAFB.AF.... (Gilbert, Linda M CTR USAF AFRL/RXOC)',
  'nwagner@iam.uni-stuttgart... (Nils Wagner)'),
 ('M.Reimpell at tu-bs.de (Michael Reimpell)',
  'pearu at scipy.org (Pearu Peterson)'),
 ('Miroslav.Houdek@es... (Miroslav.Houdek@es...)',
  'charlesr.harris@gmail.... (Charles R Harris)'),
 ('Miroslav.Houdek@es... (Miroslav.Houdek@es...)',
  'eads@soe.ucsc.... (Damian Eads)'),
 ('Nicolas.Rougier@inria... (Nicolas Rougier)',
  'blake.a.griffith@gmail.... (Blake Griffith)'),
 ('Nicolas.Rougier@inria... (Nicolas Rougier)',
  'fperez.net@gmail.... (Fernando Perez)'),
 ('Nicolas.Rougier@inria... (Nicolas Rougier)', 'pav@iki... (Pauli Virtanen)'),
 ('Nicolas.Rougier@inria... (Nicolas Rougier)',
  'pierre.haessig@crans.... (Pierre Haessig)'),
 ('Nicolas.Rougier@inria... (Nicolas Rougier)',
  'ralf.gommers@gmail.... (Ralf Gommers)'),
 ('Nicolas.Rougier@loria... (Nicolas Rougier)',
  'stefan@sun.ac... (=?ISO-8859-1?Q?St=E9fan_van_der_Walt?=)'),
 ('Norbert.Nemec.List@gmx... (Norbet Namec)',
  'robert.kern@gmail.... (Robert Kern)'),
 ('Norbert.Nemec.list at gmx.de (Norbert Nemec)',
  'Fernando.Perez at colorado.edu (Fernando Perez)'),
 ('Norbert.Nemec.list at gmx.de (Norbert Nemec)',
  'charlesr.harris at gmail.com (Charles R Harris)'),
 ('Norbert.Nemec.list at gmx.de (Norbert Nemec)',
  'gruben at bigpond.net.au (Gary Ruben)'),
 ('Norbert.Nemec.list at gmx.de (Norbert Nemec)',
  'nwagner at iam.uni-stuttgart.de (Nils Wagner)'),
 ('Norbert.Nemec.list at gmx.de (Norbert Nemec)',
  'oliphant.travis at ieee.org (Travis Oliphant)'),
 ('Norbert.Nemec.list at gmx.de (Norbert Nemec)',
  'pearu at scipy.org (Pearu Peterson)'),
 ('Norbert.Nemec.list at gmx.de (Norbert Nemec)',
  'rkern at ucsd.edu (Robert Kern)'),
 ('Norbert.Nemec.list at gmx.de (Norbert Nemec)',
  'robert.kern at gmail.com (Robert Kern)'),
 ('Norbert.Nemec.list@gmx... (Norbert Nemec)',
  'Norbert.Nemec.list@gmx... (Norbert Nemec)'),
 ('P.Schellart@astro.ru... (Pim Schellart)',
  'charlesr.harris@gmail.... (Charles R Harris)'),
 ('P.Schellart@astro.ru... (Pim Schellart)',
  'cohen@lpta.in2p3... (Johann Cohen-Tanugi)'),
 ('P.Schellart@astro.ru... (Pim Schellart)',
  'cournape@gmail.... (David Cournapeau)'),
 ('P.Schellart@astro.ru... (Pim Schellart)',
  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
 ('P.Schellart@astro.ru... (Pim Schellart)',
  'oliphant@enthought.... (Travis Oliphant)'),
 ('P.Schellart@astro.ru... (Pim Schellart)',
  'warren.weckesser@enthought.... (Warren Weckesser)'),
 ('Per.Brodtkorb@f... (Per.Brodtkorb@f...)',
  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
 ('Ralf.Juengling@synopsys.... (Ralf Juengling)',
  'd.l.goldsmith@gmail.... (David Goldsmith)'),
 ('Ralf_Ahlbrink at web.de (Ralf Ahlbrink)',
  'oliphant at ee.byu.edu (Travis Oliphant)'),
 ('Ralf_Ahlbrink@web... (Ralf Ahlbrink)',
  'cournape@gmail.... (David Cournapeau)'),
 ('Robin.K.Friedrich at usa-spaceops.com (Friedrich, Robin K)',
  'robert.kern at gmail.com (Robert Kern)'),
 ('Robin.K.Friedrich@usa-spaceops.... (Friedrich, Robin K)',
  'oliphant@enthought.... (Travis E. Oliphant)'),
 ('Robin.K.Friedrich@usa-spaceops.... (Friedrich, Robin K)',
  'travis@enthought.... (Travis Vaught)'),
 ('Scott.Daniels@Acm.... (Scott David Daniels)',
  'david@ar.media.kyoto-u.ac... (David Cournapeau)'),
 ('Simon.Tournier@alumni.enseeiht... (simon tournier)',
  'nonhermitian@gmail.... (Paul Nation)'),
 ('Thomas.Haslwanter@fh-linz... (Haslwanter Thomas)',
  'Thomas.Haslwanter@fh-linz... (Haslwanter Thomas)'),
 ('Thomas.Haslwanter@fh-linz... (Haslwanter Thomas)',
  'josef.pktd@gmai... (josef.pktd@gmai...)'),
 ('Thomas.Haslwanter@fh-linz... (Haslwanter Thomas)',
  'njs@pobox.... (Nathaniel Smith)'),
 ('Thomas.Haslwanter@fh-linz... (Haslwanter Thomas)',
  'warren.weckesser@gmail.... (Warren Weckesser)'),
 ('TravisOliphant at netscape.net (Travis Oliphant)',
  'eric at enthought.com (eric jones)'),
 ('Vincent.Virgilio at itt.com (Virgilio, Vincent)',
  'pearu at scipy.org (Pearu Peterson)'),
 ('a.h.jaffe at gmail.com (Andrew Jaffe)',
  'Fernando.Perez at colorado.edu (Fernando Perez)'),
 ('a.h.jaffe at gmail.com (Andrew Jaffe)',
  'a.h.jaffe at gmail.com (Andrew Jaffe)'),
 ('a.h.jaffe at gmail.com (Andrew Jaffe)',
  'jswhit at fastmail.fm (Jeff Whitaker)'),
 ('a.h.jaffe at gmail.com (Andrew Jaffe)',
  'nwagner at mecha.uni-stuttgart.de (Nils Wagner)'),
 ('a.h.jaffe at gmail.com (Andrew Jaffe)',
  'oliphant at ee.byu.edu (Travis Oliphant)'),
 ('a.h.jaffe at gmail.com (Andrew Jaffe)',
  'oliphant.travis at ieee.org (Travis Oliphant)'),
 ('a.h.jaffe at gmail.com (Andrew Jaffe)',
  'schofield at ftw.at (Ed Schofield)'),
 ('a.loew@gmx.... (=?ISO-8859-1?Q?Alexander_L=F6w?=)',
  'njs@pobox.... (Nathaniel Smith)'),
 ('a.loew@gmx.... (=?ISO-8859-1?Q?Alexander_L=F6w?=)',
  'travis@continuum... (Travis Oliphant)'),
 ('a.mcmorland at auckland.ac.nz (Angus McMorland)',
  'a.mcmorland at auckland.ac.nz (Angus McMorland)'),
 ('a.mcmorland at auckland.ac.nz (Angus McMorland)',
  'robert.kern at gmail.com (Robert Kern)'),
 ('a.schmolck at gmx.net (A.Schmolck)',
  'hinsen at cnrs-orleans.fr (Konrad Hinsen)'),
 ('a.schmolck at gmx.net (A.Schmolck)',
  'prabhu at aero.iitm.ernet.in (Prabhu Ramachandran)'),
 ('a.schmolck at gmx.net (Alexander Schmolck)',
  'pearu at cens.ioc.ee (Pearu Peterson)'),
 ('a.schmolck@gmx.... (Alexander Schmolck)',
  'brian.lee.hawthorne@gmail.... (Brian Hawthorne)'),
 ('a.schmolck@gmx.... (Alexander Schmolck)',
  'david@ar.media.kyoto-u.ac... (David Cournapeau)'),
 ('a.schmolck@gmx.... (Alexander Schmolck)',
  'jstrunk@enthought.... (Jeff Strunk)'),
 ('a.schmolck@gmx.... (Alexander Schmolck)',
  'matthew.brett@gmail.... (Matthew Brett)'),
 ('a.schmolck@gmx.... (Alexander Schmolck)',
  'millman@berkeley.... (Jarrod Millman)'),
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  'nwagner@iam.uni-stuttgart... (Nils Wagner)'),
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  'robert.kern@gmail.... (Robert Kern)'),
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  'stefan@sun.ac... (Stefan van der Walt)'),
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  'oliphant.travis at ieee.org (Travis Oliphant)'),
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  'aaaagrawal@gmail.... (Ankit Agrawal)'),
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  'jsseabold@gmail.... (Skipper Seabold)'),
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  'ralf.gommers@gmail.... (Ralf Gommers)'),
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  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
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  'cournape@gmail.... (David Cournapeau)'),
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  'damian.eads.lists@gmail.... (Damian Eads)'),
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  'eads@soe.ucsc.... (Damian Eads)'),
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  'oliphant@enthought.... (Travis Oliphant)'),
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  'stefan@sun.ac... (=?ISO-8859-1?Q?St=E9fan_van_der_Walt?=)'),
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  'sturla@molden... (Sturla Molden)'),
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 ('adamadamadamamiadam at gmail.com (Adam Curtis)',
  'dd55 at cornell.edu (Darren Dale)'),
 ('adamadamadamamiadam at gmail.com (Adam Curtis)',
  'robert.kern at gmail.com (Robert Kern)'),
 ('adamadamadamamiadam at gmail.com (Adam Curtis)',
  'tim.leslie at gmail.com (Tim Leslie)'),
 ('adamadamadamamiadam at gmail.com (CakeProphet)',
  'jeff at taupro.com (Jeff Rush)'),
 ('adamadamadamamiadam at gmail.com (CakeProphet)',
  'tim.leslie at gmail.com (Tim Leslie)'),
 ('adamrossbarker at hotmail.com (Adam Barker)',
  'pearu at cens.ioc.ee (Pearu Peterson)'),
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  'ralf.gommers@gmail.... (Ralf Gommers)'),
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  'josef.pktd@gmai... (josef.pktd@gmai...)'),
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  'ralf.gommers@gmail.... (Ralf Gommers)'),
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  'fperez.net@gmail.... (Fernando Perez)'),
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  'boisgera at isia.cma.fr (=?ISO-8859-1?Q?S=E9bastien_Boisg=E9rault?=)'),
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  'cookedm at physics.mcmaster.ca (David M. Cooke)'),
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  'jensj at fysik.dtu.dk (Jens =?ISO-8859-1?Q?J=F8rgen?= Mortensen)'),
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  'jonas at cortical.mit.edu (Eric Jonas)'),
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  'michaeljgruber+scipy at fastmail.fm (Michael J Gruber)'),
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  'oliphant at ee.byu.edu (Travis Oliphant)'),
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  'stefan at sun.ac.za (Stefan van der Walt)'),
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  'arnd.baecker at web.de (Arnd Baecker)'),
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  'cimrman3@ntc.zcu... (Robert Cimrman)'),
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  'd_l_goldsmith@yahoo.... (David Goldsmith)'),
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  'fperez.net@gmail.... (Fernando Perez)'),
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  'josef.pktd@gmai... (josef.pktd@gmai...)'),
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  'justus.schwabedal@gmx... (Justus Schwabedal)'),
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  'mforbes@physics.ubc... (Michael McNeil Forbes)'),
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  'millman@berkeley.... (Jarrod Millman)'),
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  'nwagner@iam.uni-stuttgart... (Nils Wagner)'),
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  'scipy2mdjhs78c@jenningsstory.... (Andy Jennings)'),
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  'josef.pktd@gmai... (josef.pktd@gmai...)'),
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  'akshar.bhosale@gmail.... (akshar bhosale)'),
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  'derek@astro.physik.uni-goettingen... (Derek Homeier)'),
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  'sturla.molden@gmail.... (Sturla Molden)'),
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  'charlesr.harris@gmail.... (Charles R Harris)'),
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  'ellisonbg.net@gmail.... (Brian Granger)'),
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  'matthew.brett@gmail.... (Matthew Brett)'),
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  'millman@berkeley.... (Jarrod Millman)'),
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  'robert.kern@gmail.... (Robert Kern)'),
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  'stefan@sun.ac... (=?ISO-8859-1?Q?St=E9fan_van_der_Walt?=)'),
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  'sturla.molden@gmail.... (Sturla Molden)'),
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  'josef.pktd@gmai... (josef.pktd@gmai...)'),
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  'jochen at jochen-kuepper.de (Jochen =?iso-8859-1?q?K=FCpper?=)'),
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  'charlesr.harris@gmail.... (Charles R Harris)'),
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  'stefan@sun.ac... (=?ISO-8859-1?Q?St=E9fan_van_der_Walt?=)'),
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  'thouis@broadinstitute.... (Thouis (Ray) Jones)'),
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  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
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  'evgeny.burovskiy@gmail.... (Evgeni Burovski)'),
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  'lists@hilboll... (Andreas Hilboll)'),
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  'goxberry@gmail.... (Geoff Oxberry)'),
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  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
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  'peridot.faceted@gmail.... (Anne Archibald)'),
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  'Fernando.Perez at colorado.edu (Fernando Perez)'),
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  'oliphant at ee.byu.edu (Travis Oliphant)'),
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  'pearu at cens.ioc.ee (Pearu Peterson)'),
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  'nwagner at iam.uni-stuttgart.de (Nils Wagner)'),
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  'Per.Brodtkorb@f... (Per.Brodtkorb@f...)'),
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  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
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  'niall.moran@gmail.... (Niall Moran)'),
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  'charlesr.harris@gmail.... (Charles R Harris)'),
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  'd.l.goldsmith@gmail.... (David Goldsmith)'),
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  'dwf@cs.toronto.... (David Warde-Farley)'),
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  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
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  'gokhansever@gmail.... (=?UTF-8?Q?G=C3=B6khan_Sever?=)'),
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  'josef.pktd@gmai... (josef.pktd@gmai...)'),
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  'pav@iki... (Pauli Virtanen)'),
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  'robert.kern@gmail.... (Robert Kern)'),
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  'schut@sarvision... (Vincent Schut)'),
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  'warren.weckesser@enthought.... (Warren Weckesser)'),
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  'jochen at jochen-kuepper.de (Jochen =?iso-8859-1?q?K=FCpper?=)'),
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  'oliphant.travis at ieee.org (Travis Oliphant)'),
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  'pearu at scipy.org (pearu at scipy.org)'),
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  'Chris.Fonnesbeck at MyFWC.com (Fonnesbeck, Chris)'),
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  'Fernando.Perez at colorado.edu (Fernando Perez)'),
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  'a.h.jaffe at gmail.com (Andrew Jaffe)'),
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  'fishburn at MIT.EDU (Matt Fishburn)'),
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  'jorgen.stenarson at bostream.nu (=?ISO-8859-1?Q?J=F6rgen_Stenarson?=)'),
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  'kamrik at gmail.com (Mark Koudritsky)'),
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  'nwagner at iam.uni-stuttgart.de (Nils Wagner)'),
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  'nwagner at mecha.uni-stuttgart.de (Nils Wagner)'),
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  'prabhu_r at users.sf.net (Prabhu Ramachandran)'),
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  'ralf.gommers@googlemail.... (Ralf Gommers)'),
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  'charlesr.harris@gmail.... (Charles R Harris)'),
 ('benfrantzdale@gmail.... (Ben FrantzDale)',
  'david@ar.media.kyoto-u.ac... (David Cournapeau)'),
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  'robert.kern@gmail.... (Robert Kern)'),
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  'arnd.baecker@web... (Arnd Baecker)'),
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  'benny.malengier@gmail.... (Benny Malengier)'),
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  'evgeny.burovskiy@gmail.... (Evgeni Burovski)'),
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  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
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  'max.mail@dameweb... (Max Mertens)'),
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  'nwagner@iam.uni-stuttgart... (Nils Wagner)'),
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  'rob.clewley@gmail.... (Rob Clewley)'),
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  'robert.kern@gmail.... (Robert Kern)'),
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  'stefan@sun.ac... (=?ISO-8859-1?Q?St=E9fan_van_der_Walt?=)'),
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  'wnbell@gmail.... (Nathan Bell)'),
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  'pearu at scipy.org (Pearu Peterson)'),
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  'oliphant at ee.byu.edu (Travis Oliphant)'),
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  'bigorneault@gmail.... (=?ISO-8859-1?Q?Th=E9lesphonse_Bigorneault?=)'),
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  'pav@iki... (Pauli Virtanen)'),
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  'blake.a.griffith@gmail.... (Blake Griffith)'),
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  'charlesr.harris@gmail.... (Charles R Harris)'),
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  'cjordan1@uw.... (Christopher Jordan-Squire)'),
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  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
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  'matthew.brett@gmail.... (Matthew Brett)'),
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  'casperskovby@gmail.... (Casper Skovby)'),
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  'matthieu.brucher@gmail.... (Matthieu Brucher)'),
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  'pgmdevlist@gmail.... (Pierre GM)'),
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 ('cell@michaelclerx.... (Michael Clerx)',
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 ('cgohlke@uci.... (Christoph Gohlke)',
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  'nwagner at mecha.uni-stuttgart.de (Nils Wagner)'),
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  'arnd.baecker at web.de (Arnd Baecker)'),
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  'charles.moliere@gmail.... (Charles Moliere)'),
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  'jsseabold@gmail.... (Skipper Seabold)'),
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  'akshar.bhosale@gmail.... (akshar bhosale)'),
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  'ckkart@hoc.... (Christian K.)'),
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  'david.douard@logilab... (David Douard)'),
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  'david.huard@gmail.... (David Huard)'),
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  'eads@soe.ucsc.... (Damian Eads)'),
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  'eraldo.pomponi@gmail.... (Eraldo Pomponi)'),
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  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
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  'howarth@bromo.med.uc.... (Jack Howarth)'),
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  'jason-sage@creativetra... (jason-sage@creativetra...)'),
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  'jjhelmus@gmail.... (Jonathan Helmus)'),
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  'josh.holbrook@gmail.... (Joshua Holbrook)'),
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  'jsseabold@gmail.... (Skipper Seabold)'),
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  'jtaylor.debian@googlemail.... (Julian Taylor)'),
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  'jtravs@gmail.... (John Travers)'),
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  'lkb.teichmann@gmail.... (Martin Teichmann)'),
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  'mhansen@gmail.... (Mike Hansen)'),
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  'nouiz@nouiz.... (=?UTF-8?B?RnLDqWTDqXJpYyBCYXN0aWVu?=)'),
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  'ralf.gommers@googlemail.... (Ralf Gommers)'),
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  'rmay31@gmail.... (Ryan May)'),
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  'rob.clewley@gmail.... (Rob Clewley)'),
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  'sebastian.walter@gmail.... (Sebastian Walter)'),
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  'wbaxter@gmail.... (Bill Baxter)'),
 ('charlesr.harris@gmail.... (Charles R Harris)',
  'zbyszek@in.waw... (Zbyszek Szmek)'),
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  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
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  'Fernando.Perez at colorado.edu (Fernando Perez)'),
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  'oliphant.travis at ieee.org (Travis E. Oliphant)'),
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  'cimrman3 at ntc.zcu.cz (Robert Cimrman)'),
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  'jonathan.taylor at utoronto.ca (Jonathan Taylor)'),
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  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
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 ('cimrman3@ntc.zcu... (Robert Cimrman)',
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  'mail@danieldasilva.... (Daniel da Silva)'),
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  'ewm@redtetrahedron.... (Eric Moore)'),
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  'robert.kern@gmail.... (Robert Kern)'),
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  'charlesr.harris@gmail.... (Charles R Harris)'),
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  'ondrej@certik... (Ondrej Certik)'),
 ('ctw@cogsci.i... (Christoph T. Weidemann)',
  'charlesr.harris@gmail.... (Charles R Harris)'),
 ('ctw@cogsci.i... (Christoph T. Weidemann)',
  'ctw@cogsci.i... (Christoph T. Weidemann)'),
 ('ctw@cogsci.i... (Christoph T. Weidemann)',
  'oliphant@enthought.... (Travis E. Oliphant)'),
 ('ctw@cogsci.i... (Christoph T. Weidemann)',
  'pgmdevlist@gmail.... (Pierre GM)'),
 ('ctw@cogsci.i... (Christoph T. Weidemann)',
  'stefan@sun.ac... (=?ISO-8859-1?Q?St=E9fan_van_der_Walt?=)'),
 ('curtis at lpl.arizona.edu (Curtis Cooper)',
  'oliphant.travis at ieee.org (Travis Oliphant)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'ariver@enthought.... (Aaron River)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'ben.root@ou.... (Benjamin Root)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'cburns@berkeley.... (Christopher Burns)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'charlesr.harris@gmail.... (Charles R Harris)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'd.l.goldsmith@gmail.... (David Goldsmith)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'david.huard@gmail.... (David Huard)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'david.kirkby@onetel.... (Dr. David Kirkby)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'david@silveregg.co... (David Cournapeau)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'guyer@nist.... (Jonathan Guyer)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'jason-sage@creativetrax.... (Jason Grout)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'klrkdekira@gmail.... (CL Chow)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'kwgoodman@gmail.... (Keith Goodman)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'millman@berkeley.... (Jarrod Millman)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'nwagner@iam.uni-stuttgart... (Nils Wagner)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'pgmdevlist@gmail.... (Pierre GM)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'ralf.gommers@googlemail.... (Ralf Gommers)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'robert.kern@gmail.... (Robert Kern)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'scott.sinclair.za@gmail.... (Scott Sinclair)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'smattacus@gmail.... (Sean Mattingly)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'tom.grydeland@gmail.... (Tom Grydeland)'),
 ('d.l.goldsmith@gmail.... (David Goldsmith)',
  'vincent@vincentdavis.... (Vincent Davis)'),
 ('d.s.seljebotn@astro.uio... (Dag Sverre Seljebotn)',
  'd.s.seljebotn@astro.uio... (Dag Sverre Seljebotn)'),
 ('d.s.seljebotn@astro.uio... (Dag Sverre Seljebotn)',
  'njs@pobox.... (Nathaniel Smith)'),
 ('d.s.seljebotn@astro.uio... (Dag Sverre Seljebotn)',
  'robert.kern@gmail.... (Robert Kern)'),
 ('d_l_goldsmith@yaho... (d_l_goldsmith@yaho...)',
  'dwf@cs.toronto.... (David Warde-Farley)'),
 ('d_l_goldsmith@yaho... (d_l_goldsmith@yaho...)',
  'josef.pktd@gmai... (josef.pktd@gmai...)'),
 ('d_l_goldsmith@yaho... (d_l_goldsmith@yaho...)',
  'pgmdevlist@gmail.... (Pierre GM)'),
 ('d_l_goldsmith@yaho... (d_l_goldsmith@yaho...)',
  'ralf.gommers@googlemail.... (Ralf Gommers)'),
 ('d_l_goldsmith@yaho... (d_l_goldsmith@yaho...)',
  'robert.kern@gmail.... (Robert Kern)'),
 ('d_l_goldsmith@yaho... (d_l_goldsmith@yaho...)',
  'stefan@sun.ac... (=?ISO-8859-1?Q?St=E9fan_van_der_Walt?=)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  '00ai99@gmail.... (David Gowers)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'HAWRYLA@novachem.... (Andrew Hawryluk)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'Scott.Daniels@Acm.... (Scott David Daniels)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'chanley@stsci.... (Christopher Hanley)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'charlesr.harris@gmail.... (Charles R Harris)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'd_l_goldsmith@yahoo.... (David Goldsmith)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'dwf@cs.toronto.... (David Warde-Farley)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'emmanuelle.gouillart@normalesup.... (Emmanuelle Gouillart)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'jackliddlephysics@googlemail.... (Jack Liddle)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'josef.pktd@gmai... (josef.pktd@gmai...)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'jsseabold@gmail.... (Skipper Seabold)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'njs@pobox.... (Nathaniel Smith)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'nmb@wartburg.... (Neil Martinsen-Burrell)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'pgmdevlist@gmail.... (Pierre GM)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'ralf.gommers@googlemail.... (Ralf Gommers)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)', 'rmay31@gmail.... (Ryan May)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'robert.kern@gmail.... (Robert Kern)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'scott.sinclair.za@gmail.... (Scott Sinclair)'),
 ('d_l_goldsmith@yahoo.... (David Goldsmith)',
  'stefan@sun.ac... (=?ISO-8859-1?Q?St=E9fan_van_der_Walt?=)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'aisaac@american.... (Alan G Isaac)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'charlesr.harris@gmail.... (Charles R Harris)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'dagss@student.matnat.uio... (Dag Sverre Seljebotn)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'david@silveregg.co... (David Cournapeau)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'dwf@cs.toronto.... (David Warde-Farley)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'josef.pktd@gmai... (josef.pktd@gmai...)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'kwmsmith@gmail.... (Kurt Smith)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'matthew.brett@gmail.... (Matthew Brett)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'oliphant@enthought.... (Travis Oliphant)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'ondrej@certik... (Ondrej Certik)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'peridot.faceted@gmail.... (Anne Archibald)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'sebastian.walter@gmail.... (Sebastian Walter)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'stefan@sun.ac... (=?ISO-8859-1?Q?St=E9fan_van_der_Walt?=)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'sturla@molden... (Sturla Molden)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'tmp50@ukr.... (Dmitrey)'),
 ('dagss@student.matnat.uio... (Dag Sverre Seljebotn)',
  'william.ratcliff@gmail.... (william ratcliff)'),
 ('dahl.joachim at gmail.com (Joachim Dahl)',
  'wnbell at gmail.com (Nathan Bell)'),
 ('dahl.joachim@gmail.... (Joachim Dahl)', 'openopt@ukr.... (dmitrey)'),
 ('dalcinl at gmail.com (Lisandro Dalcin)',
  'bhendrix at enthought.com (Bryce Hendrix)'),
 ('dalcinl at gmail.com (Lisandro Dalcin)',
  'ellisonbg.net at gmail.com (Brian Granger)'),
 ('dalcinl at gmail.com (Lisandro Dalcin)',
  'oliphant.travis at ieee.org (Travis Oliphant)'),
 ('dalcinl at gmail.com (Lisandro Dalcin)',
  'schofield at ftw.at (Ed Schofield)'),
 ('dalcinl at gmail.com (Lisandro Dalcin)',
  'stephen.walton at csun.edu (Stephen Walton)'),
 ('dalcinl at gmail.com (Lisandro Dalcin)',
  'thamelry at binf.ku.dk (thamelry at binf.ku.dk)'),
 ('dalcinl@gmail.... (Lisandro Dalcin)',
  'dagss@student.matnat.uio... (Dag Sverre Seljebotn)'),
 ('dalcinl@gmail.... (Lisandro Dalcin)',
  'doutriaux1@llnl.... (Charles Doutriaux)'),
 ('damian.eads.lists@gmail.... (Damian Eads)',
  'millman@berkeley.... (Jarrod Millman)'),
 ('damian.eads.lists@gmail.... (Damian Eads)',
  'oliphant@enthought.... (Travis E. Oliphant)'),
 ('daniel.asenjo@gmail.... (Daniel Asenjo)',
  'msuzen@gmail.... (Suzen, Mehmet)'),
 ('daniel.asenjo@gmail.... (Daniel Asenjo)',
  'ralf.gommers@gmail.... (Ralf Gommers)'),
 ('daniel.wheeler2@gmail.... (Daniel Wheeler)',
  'cohen@lpta.in2p3... (Cohen-Tanugi Johann)'),
 ('daniel.wheeler@nist.... (Daniel Wheeler)',
  'edschofield@gmail.... (Ed Schofield)'),
 ('daniel.wheeler@nist.... (Daniel Wheeler)',
  'wnbell@gmail.... (Nathan Bell)'),
 ('daniele@grinta.... (Daniele Nicolodi)', 'pav@iki... (Pauli Virtanen)'),
 ('daniele@grinta.... (Daniele Nicolodi)',
  'warren.weckesser@enthought.... (Warren Weckesser)'),
 ('danielsjensen1@gmail.... (Daniel Jensen)',
  'scott.sinclair.za@gmail.... (Scott Sinclair)'),
 ('danilo.horta@gmail.... (Danilo Horta)',
  'josef.pktd@gmai... (josef.pktd@gmai...)'),
 ('datafeed at SoftHome.net (M. Evans)',
  'DavidA at ActiveState.com (David Ascher)'),
 ('datafeed at SoftHome.net (M. Evans)',
  'datafeed at SoftHome.net (M. Evans)'),
 ('datafeed at SoftHome.net (M. Evans)', 'eric at enthought.com (eric jones)'),
 ('datafeed at SoftHome.net (M. Evans)',
  'prabhu at aero.iitm.ernet.in (Prabhu Ramachandran)'),
 ('dave.hirschfeld@gmail.... (Dave Hirschfeld)',
  'pgmdevlist@gmail.... (Pierre GM)'),
 ('dave.hirschfeld@gmail.... (Dave)', 'aisaac@american.... (Alan G Isaac)'),
 ('dave.hirschfeld@gmail.... (Dave)', 'david.huard@gmail.... (David Huard)'),
 ('dave.hirschfeld@gmail.... (Dave)', 'dmitrey.kroshko@scipy.... (dmitrey)'),
 ('dave.hirschfeld@gmail.... (Dave)', 'pgmdevlist@gmail.... (Pierre GM)'),
 ('david at ar.media.kyoto-u.ac.jp (David Cournapeau)',
  'aisaac at american.edu (Alan G Isaac)'),
 ('david at ar.media.kyoto-u.ac.jp (David Cournapeau)',
  'cimrman3 at ntc.zcu.cz (Robert Cimrman)'),
 ('david at ar.media.kyoto-u.ac.jp (David Cournapeau)',
  'cookedm at physics.mcmaster.ca (David M. Cooke)'),
 ('david at ar.media.kyoto-u.ac.jp (David Cournapeau)',
  'david at ar.media.kyoto-u.ac.jp (David Cournapeau)'),
 ('david at ar.media.kyoto-u.ac.jp (David Cournapeau)',
  'faltet at carabos.com (Francesc Altet)'),
 ('david at ar.media.kyoto-u.ac.jp (David Cournapeau)',
  'fullung at gmail.com (Albert Strasheim)'),
 ('david at ar.media.kyoto-u.ac.jp (David Cournapeau)',
  'robert.kern at gmail.com (Robert Kern)'),
 ('david.douard at logilab.fr (David Douard)',
  'pgmdevlist at gmail.com (Pierre GM)'),
 ('david.grant at telus.net (David Grant)',
  'aisaac at american.edu (Alan G Isaac)'),
 ('david.grant at telus.net (David Grant)',
  'oliphant at ee.byu.edu (Travis Oliphant)'),
 ('david.huard at gmail.com (David Huard)',
  'aisaac at american.edu (Alan G Isaac)'),
 ('david.huard at gmail.com (David Huard)',
  'aisaac at american.edu (Alan Isaac)'),
 ('david.huard at gmail.com (David Huard)',
  'bsouthey at gmail.com (Bruce Southey)'),
 ('david.huard at gmail.com (David Huard)',
  'cookedm at physics.mcmaster.ca (David M. Cooke)'),
 ('david.huard at gmail.com (David Huard)',
  'david.huard at gmail.com (David Huard)'),
 ('david.huard at gmail.com (David Huard)',
  'dd55 at cornell.edu (Darren Dale)'),
 ('david.huard at gmail.com (David Huard)',
  'gruben at bigpond.net.au (Gary Ruben)'),
 ('david.huard at gmail.com (David Huard)',
  'jensj at fysik.dtu.dk (Jens =?ISO-8859-1?Q?J=F8rgen?= Mortensen)'),
 ('david.huard at gmail.com (David Huard)',
  'martin.hoefling at gmx.de (Martin =?utf-8?q?H=C3=B6fling?=)'),
 ('david.huard at gmail.com (David Huard)',
  'robert.kern at gmail.com (Robert Kern)'),
 ('david.huard@gmail.... (David Huard)',
  'cournape@gmail.... (David Cournapeau)'),
 ('david.huard@gmail.... (David Huard)',
  'dagss@student.matnat.uio... (Dag Sverre Seljebotn)'),
 ('david.huard@gmail.... (David Huard)',
  'david@ar.media.kyoto-u.ac... (David Cournapeau)'),
 ('david.huard@gmail.... (David Huard)',
  'faltet@carabos.... (Francesc Altet)'),
 ('david.huard@gmail.... (David Huard)', 'martyfuhry@gmail.... (Marty Fuhry)'),
 ('david.huard@gmail.... (David Huard)',
  'peridot.faceted@gmail.... (Anne Archibald)'),
 ('david.huard@gmail.... (David Huard)', 'pgmdevlist@gmail.... (Pierre GM)'),
 ('david.kirkby@onetel.... (David Kirkby)', 'tanner@gmx... (Thomas Tanner)'),
 ('david.kirkby@onetel.... (Dr. David Kirkby)',
  'aisaac@american.... (Alan G Isaac)'),
 ('david.kremer.dk@gmail.... (David Kremer)',
  'cournape@gmail.... (David Cournapeau)'),
 ('david.kremer.dk@gmail.... (David Kremer)',
  'jason-sage@creativetrax.... (Jason Grout)'),
 ('david.kremer.dk@gmail.... (David Kremer)',
  'ralf.gommers@googlemail.... (Ralf Gommers)'),
 ('david.strozzi@gmail.... (David Strozzi)',
  'evgeny.burovskiy@gmail.... (Evgeni Burovski)'),
 ('david.verelst@gmail.... (David Verelst)',
  'denis.laxalde@mcgill... (Denis Laxalde)'),
 ('david.verelst@gmail.... (David Verelst)',
  'josef.pktd@gmai... (josef.pktd@gmai...)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'Laurence.Viry@imag... (Laurence Viry)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'aahz@pythoncraft.... (Aahz)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'aisaac@american.... (Alan G Isaac)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'alan.mcintyre@gmail.... (Alan McIntyre)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'anand.prabhakar.patil@gmail.... (Anand Patil)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'benny.malengier@gmail.... (Benny Malengier)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'brian.lee.hawthorne@gmail.... (Brian Hawthorne)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'chanley@stsci.... (Christopher Hanley)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'charlesr.harris@gmail.... (Charles R Harris)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'cohen@slac.stanford.... (Johann Cohen-Tanugi)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'cournape@gmail.... (David Cournapeau)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'dagss@student.matnat.uio... (Dag Sverre Seljebotn)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'dalcinl@gmail.... (Lisandro Dalcin)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'david@ar.media.kyoto-u.ac... (David Cournapeau)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'drizzd@aon... (Clemens Buchacher)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'dwf@cs.toronto.... (David Warde-Farley)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'ellisonbg.net@gmail.... (Brian Granger)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'eric@enthought.... (eric jones)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'faltet@carabos.... (Francesc Altet)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'guyer@nist.... (Jonathan Guyer)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'hagberg@lanl.... (Aric Hagberg)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'hoytak@gmail.... (Hoyt Koepke)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'john@curioussymbols.... (John Pye)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'jtravs@gmail.... (John Travers)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'lists@cheimes... (Christian Heimes)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'matthew.brett@gmail.... (Matthew Brett)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
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 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
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 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
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 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'pearu@cens.ioc... (Pearu Peterson)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'peridot.faceted@gmail.... (Anne Archibald)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
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 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'pgmdevlist@gmail.... (Pierre GM)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
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  'robert.kern@gmail.... (Robert Kern)'),
 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
  'robince@gmail.... (Robin)'),
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  'sim@klubko.... (Petr =?utf-8?q?=C5=A0imon?=)'),
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  'sturla@molden... (Sturla Molden)'),
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 ('david@ar.media.kyoto-u.ac... (David Cournapeau)',
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  'william.ratcliff@gmail.... (william ratcliff)'),
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  'wnbell@gmail.... (Nathan Bell)'),
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  'charlesr.harris@gmail.... (Charles R Harris)'),
 ('david@silveregg.co... (David Cournapeau)',
  'gael.varoquaux@normalesup.... (Gael Varoquaux)'),
 ('david@silveregg.co... (David Cournapeau)', 'pav@iki... (Pauli Virtanen)'),
 ('david@silveregg.co... (David Cournapeau)',
  'robert.kern@gmail.... (Robert Kern)'),
 ('david@silveregg.co... (David Cournapeau)',
  'sturla@molden... (Sturla Molden)'),
 ('david@silveregg.co... (David Cournapeau)',
  'tom.grydeland@gmail.... (Tom Grydeland)'),
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  'charlesr.harris@gmail.... (Charles R Harris)'),
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  'travis at enthought.com (Travis N. Vaught)'),
 ('davidmenhur@gmail.... (=?UTF-8?B?RGHPgGlk?=)',
  'charlesr.harris@gmail.... (Charles R Harris)'),
 ('davidmenhur@gmail.... (=?UTF-8?B?RGHPgGlk?=)',
  'davidmenhur@gmail.... (=?UTF-8?B?RGHPgGlk?=)'),
 ('davidmenhur@gmail.... (=?UTF-8?B?RGHPgGlk?=)',
  'pav@iki... (Pauli Virtanen)'),
 ('db@edx.... (David Baumgold)', 'matthew.brett@gmail.... (Matthew Brett)'),
 ('db@edx.... (David Baumgold)', 'robert.kern@gmail.... (Robert Kern)'),
 ('db@edx.... (David Baumgold)', 'travis@continuum... (Travis Oliphant)'),
 ('dd55 at cornell.edu (Darren  Dale)',
  'arnd.baecker at web.de (Arnd Baecker)'),
 ('dd55 at cornell.edu (Darren Dale)',
  'arnd.baecker at web.de (Arnd Baecker)'),
 ('dd55 at cornell.edu (Darren Dale)', 'byrnes at bu.edu (John Byrnes)'),
 ('dd55 at cornell.edu (Darren Dale)',
  'charlesr.harris at gmail.com (Charles R Harris)'),
 ('dd55 at cornell.edu (Darren Dale)',
  'cimrman3 at ntc.zcu.cz (Robert Cimrman)'),
 ('dd55 at cornell.edu (Darren Dale)', 'dd55 at cornell.edu (Darren Dale)'),
 ('dd55 at cornell.edu (Darren Dale)',
  'gruben at bigpond.net.au (Gary Ruben)'),
 ('dd55 at cornell.edu (Darren Dale)',
  'jonathan.taylor at utoronto.ca (Jonathan Taylor)'),
 ('dd55 at cornell.edu (Darren Dale)',
  'kamrik at gmail.com (Mark Koudritsky)'),
 ('dd55 at cornell.edu (Darren Dale)',
  'oliphant at ee.byu.edu (Travis Oliphant)'),
 ('dd55 at cornell.edu (Darren Dale)',
  'oliphant.travis at ieee.org (Travis Oliphant)'),
 ('dd55 at cornell.edu (Darren Dale)', 'pearu at scipy.org (Pearu Peterson)'),
 ('dd55 at cornell.edu (Darren Dale)',
  'robert.kern at gmail.com (Robert Kern)'),
 ('dd55 at cornell.edu (Darren Dale)',
  'stephen.walton at csun.edu (Stephen Walton)'),
 ('dd55 at cornell.edu (Darren Dale)',
  'twilson at eduplay.com (Tyler W. Wilson)'),
 ('debian@delanoe.... (Alexandre =?iso-8859-1?Q?Delano=EB?=)',
  'ralf.gommers@gmail.... (Ralf Gommers)'),
 ('deil.christoph@googlemail.... (Christoph Deil)',
  'cournape@gmail.... (David Cournapeau)'),
 ('deil.christoph@googlemail.... (Christoph Deil)',
  'josef.pktd@gmai... (josef.pktd@gmai...)'),
 ('deil.christoph@googlemail.... (Christoph Deil)',
  'maniteja.modesty067@gmail.... (Maniteja Nandana)'),
 ('deil.christoph@googlemail.... (Christoph Deil)',
  'pav@iki... (Pauli Virtanen)'),
 ('deil.christoph@googlemail.... (Christoph Deil)',
  'ralf.gommers@gmail.... (Ralf Gommers)'),
 ('deil.christoph@googlemail.... (Christoph Deil)',
  'robert.kern@gmail.... (Robert Kern)'),
 ('denis-bz-py@t-online... (denis)',
  'charlesr.harris@gmail.... (Charles R Harris)'),
 ('denis-bz-py@t-online... (denis)', 'pav@iki... (Pauli Virtanen)'),
 ('denis-bz-py@t-online... (denis)',
  'ralf.gommers@googlemail.... (Ralf Gommers)'),
 ('denis.laxalde@mcgill... (Denis Laxalde)',
  'charlesr.harris@gmail.... (Charles R Harris)'),
 ('denis.laxalde@mcgill... (Denis Laxalde)',
  'cjordan1@uw.... (Christopher Jordan-Squire)'),
 ('denis.laxalde@mcgill... (Denis Laxalde)',
  'deil.christoph@googlemail.... (Christoph Deil)'),
 ('denis.laxalde@mcgill... (Denis Laxalde)',
  'jsseabold@gmail.... (Skipper Seabold)'),
 ('denis@laxalde.... (Denis Laxalde)', 'denis@laxalde.... (Denis Laxalde)'),
 ('denis@laxalde.... (Denis Laxalde)', 'gyromagnetic@gmail.... (Gyro Funch)'),
 ('denis@laxalde.... (Denis Laxalde)', 'njs@pobox.... (Nathaniel Smith)'),
 ('denis@laxalde.... (Denis Laxalde)', 'pav@iki... (Pauli Virtanen)'),
 ('denis@laxalde.... (Denis Laxalde)',
  'ralf.gommers@gmail.... (Ralf Gommers)'),
 ('denis@laxalde.... (Denis Laxalde)', 'robert.kern@gmail.... (Robert Kern)'),
 ('derek at physast.uga.edu (Derek Homeier)',
  'pearu at cens.ioc.ee (Pearu Peterson)'),
 ('derek@astro.physik.uni-goettingen... (Derek Homeier)',
  'charlesr.harris@gmail.... (Charles R Harris)'),
 ('derek@astro.physik.uni-goettingen... (Derek Homeier)',
  'derek@astro.physik.uni-goettingen... (Derek Homeier)'),
 ('derek@astro.physik.uni-goettingen... (Derek Homeier)',
  'josef.pktd@gmai... (josef.pktd@gmai...)'),
 ('derek@astro.physik.uni-goettingen... (Derek Homeier)',
  'rajsai24@gmail.... (Sai Rajeshwar)'),
 ('derek@astro.physik.uni-goettingen... (Derek Homeier)',
  'ralf.gommers@googlemail.... (Ralf Gommers)'),
 ('deshpande.jaidev@gmail.... (Jaidev Deshpande)',
  'alan@ajackso... (alan@ajackso...)'),
 ('deshpande.jaidev@gmail.... (Jaidev Deshpande)',
  'alexandre.gramfort@inria... (Alexandre Gramfort)'),
 ('deshpande.jaidev@gmail.... (Jaidev Deshpande)',
  'bsouthey@gmail.... (Bruce Southey)'),
 ('deshpande.jaidev@gmail.... (Jaidev Deshpande)',
  'cournape@gmail.... (David Cournapeau)'),
 ...}

Using panda_allpairs, we can create the desired data frame


In [13]:
allpairs = twoppl.panda_allpairs(exchanges, pairs)
allpairs


Out[13]:
A B duration num_replies reciprocity
0 fperez.net@gmail.... (Fernando Perez) michael.abshoff@googlemail.... (Michael Abshoff) 0 days 00:00:00 1 0.000000
1 luethi@vaw.baug.ethz... (Martin =?ISO-8859-1?Q... rob.clewley@gmail.... (Rob Clewley) 0 days 00:00:00 1 0.000000
2 nils106@googlemail.... (Nils Wagner) ralf.gommers@gmail.... (Ralf Gommers) 543 days 13:42:28 16 0.777778
3 lists@hilboll... (Andreas H.) lists@hilboll... (Andreas H.) 0 days 00:00:00 2 1.000000
4 charlesr.harris@gmail.... (Charles R Harris) aisaac@american.... (Alan G Isaac) 371 days 23:57:10 2 1.000000
5 thomas.haslwanter@fh-linz... (Thomas Haslwanter) jjstickel@gmail.... (Jonathan Stickel) 0 days 00:00:00 1 0.000000
6 aric.hagberg@gmail.... (Aric Hagberg) niall.moran@gmail.... (Niall Moran) 0 days 00:00:00 1 0.000000
7 14772361@sun.ac... (Hamman, RA, Mr <14772361@s... josh.holbrook@gmail.... (Joshua Holbrook) 0 days 00:00:00 1 0.000000
8 mierle@gmail.... (Keir Mierle) stefan@sun.ac... (=?ISO-8859-1?Q?St=E9fan_van_... 0 days 00:00:00 1 0.000000
9 d_l_goldsmith@yahoo.... (David Goldsmith) jsseabold@gmail.... (Skipper Seabold) 0 days 00:00:00 1 0.000000
10 ericfode@gmail.... (Fode) ralf.gommers@googlemail.... (Ralf Gommers) 0 days 00:00:00 1 0.000000
11 eric at scipy.org (eric) pearu at scipy.org (pearu at scipy.org) 37 days 00:24:16 18 0.000000
12 david.kremer.dk@gmail.... (David Kremer) jason-sage@creativetrax.... (Jason Grout) 0 days 01:09:23 2 1.000000
13 pwang@enthought.... (Peter Wang) pwang@enthought.... (Peter Wang) 264 days 03:27:15 6 1.000000
14 ndbecker2@gmail.... (Neal Becker) jsseabold@gmail.... (Skipper Seabold) 0 days 00:00:00 1 0.000000
15 arkapravobhaumik@gmail.... (Arkapravo Bhaumik) david@ar.media.kyoto-u.ac... (David Cournapeau) 0 days 00:00:00 1 0.000000
16 jba@SDF.LONESTAR.... (Jeffrey Armstrong) josef.pktd@gmai... (josef.pktd@gmai...) 0 days 00:00:00 1 0.000000
17 collinstocks@gmail.... (Collin Stocks) ralf.gommers@googlemail.... (Ralf Gommers) 36 days 05:07:48 3 0.500000
18 pav+sp@iki... (Pauli Virtanen) charlesr.harris@gmail.... (Charles R Harris) 0 days 00:49:01 2 0.000000
19 josef.pktd@gmai... (josef.pktd@gmai...) denis@laxalde.... (Denis Laxalde) 27 days 12:09:07 4 1.000000
20 ljosa@broad.mit.... (Vebjorn Ljosa) david@ar.media.kyoto-u.ac... (David Cournapeau) 0 days 00:00:00 1 0.000000
21 pav@iki... (Pauli Virtanen) scopatz@gmail.... (Anthony Scopatz) 27 days 15:21:06 3 0.000000
22 oliphant.travis at ieee.org (Travis Oliphant) kwgoodman at gmail.com (Keith Goodman) 0 days 00:16:02 3 0.500000
23 josef.pktd@gmai... (josef.pktd@gmai...) jtravs@gmail.... (John Travers) 0 days 00:55:41 2 1.000000
24 moritz.beber@googlemail.... (Moritz Emanuel Be... josef.pktd@gmai... (josef.pktd@gmai...) 0 days 00:00:00 1 0.000000
25 nkilleen@unimelb.edu... (Neil Killeen) dwf@cs.toronto.... (David Warde-Farley) 2 days 00:55:53 5 0.666667
26 nwagner@iam.uni-stuttgart... (Nils Wagner) jba@sdf.lonestar.... (Jeffrey Armstrong) 10 days 23:07:37 2 1.000000
27 opossumnano@gmail.... (Tiziano Zito) nwagner@iam.uni-stuttgart... (Nils Wagner) 11 days 09:32:57 3 0.000000
28 aarchiba@physics.mcgill... (Anne Archibald) david@silveregg.co... (David) 0 days 00:00:00 1 0.000000
29 eric at scipy.org (eric) oliphant at ee.byu.edu (Travis Oliphant) 13 days 03:28:33 3 0.000000
... ... ... ... ... ...
3989 sturla.molden@gmail.... (Sturla Molden) ewm@redtetrahedron.... (Eric Moore) 19 days 22:34:10 4 0.333333
3990 Fernando.Perez at colorado.edu (Fernando Perez) guyer at nist.gov (Jonathan Guyer) 87 days 04:31:31 6 0.500000
3991 moritz.beber@gmail.... (Moritz Beber) njs@pobox.... (Nathaniel Smith) 7 days 05:33:19 3 0.500000
3992 jakevdp@gmail.... (Jake VanderPlas) robert.kern@gmail.... (Robert Kern) 0 days 00:00:00 1 0.000000
3993 oliphant at ee.byu.edu (Travis Oliphant) ryanlists at gmail.com (Ryan Krauss) 18 days 00:22:34 3 0.500000
3994 jdh2358@gmail.... (John Hunter) robert.kern@gmail.... (Robert Kern) 0 days 00:00:00 1 0.000000
3995 tom.grydeland@gmail.... (Tom Grydeland) oliphant@enthought.... (Travis E. Oliphant) 0 days 00:00:00 1 0.000000
3996 schofield at ftw.at (Ed Schofield) david at ar.media.kyoto-u.ac.jp (David Cournap... 0 days 00:00:00 1 0.000000
3997 robert.kern@gmail.... (Robert Kern) bsouthey@gmail.... (Bruce Southey) 1220 days 19:02:33 8 0.333333
3998 byrnes at bu.edu (John Byrnes) oliphant at ee.byu.edu (Travis Oliphant) 0 days 18:47:07 2 0.000000
3999 timvictor@gmail.... (Tim Victor) cimrman3@ntc.zcu... (Robert Cimrman) 19 days 19:14:35 6 1.000000
4000 prabhu_r at users.sf.net (Prabhu Ramachandran) prabhu_r at users.sf.net (Prabhu Ramachandran) 37 days 12:51:20 4 1.000000
4001 david@ar.media.kyoto-u.ac... (David Cournapeau) charlesr.harris@gmail.... (Charles R Harris) 374 days 14:12:12 11 0.571429
4002 tsyu80@gmail.... (Tony Yu) tsyu80@gmail.... (Tony Yu) 0 days 00:00:00 2 1.000000
4003 millman@berkeley.... (Jarrod Millman) brian.lee.hawthorne@gmail.... (Brian Hawthorne) 149 days 19:15:51 4 0.333333
4004 suryak@ieee.... (Surya Kasturi) lists@hilboll... (Andreas Hilboll) 172 days 00:10:26 30 0.764706
4005 oliphant at ee.byu.edu (Travis Oliphant) steve at shrogers.com (Steven H. Rogers) 327 days 01:44:17 4 0.333333
4006 aisaac@american.... (Alan Isaac) robert.kern@gmail.... (Robert Kern) 0 days 00:00:00 1 0.000000
4007 orion@cora.nwra.... (Orion Poplawski) orion@cora.nwra.... (Orion Poplawski) 0 days 00:00:00 2 1.000000
4008 Deil.Christoph@googlemail.... (Christoph Deil) charlesr.harris@gmail.... (Charles R Harris) 0 days 00:00:00 1 0.000000
4009 d.l.goldsmith@gmail.... (David Goldsmith) david@silveregg.co... (David Cournapeau) 55 days 22:38:25 3 0.500000
4010 ralf.gommers@googlemail.... (Ralf Gommers) rmay31@gmail.... (Ryan May) 0 days 20:34:15 2 1.000000
4011 doutriaux1@llnl.... (Charles Doutriaux) pearu@cens.ioc... (Pearu Peterson) 0 days 01:31:37 2 1.000000
4012 Fernando.Perez at colorado.edu (Fernando Perez) eric at enthought.com (eric_imap) 0 days 00:00:00 1 0.000000
4013 fperez.net@gmail.... (Fernando Perez) niall.moran@gmail.... (Niall Moran) 0 days 04:46:11 2 1.000000
4014 matthieu.brucher@gmail.... (Matthieu Brucher) zpincus@stanford.... (Zachary Pincus) 0 days 02:34:58 4 1.000000
4015 jdh2358@gmail.... (John Hunter) cohen@slac.stanford.... (Johann Cohen-Tanugi) 0 days 00:00:00 1 0.000000
4016 mattknox_ca at hotmail.com (Matt Knox) david.huard at gmail.com (David Huard) 7 days 01:11:35 2 0.000000
4017 graeme.okeefe@petnm.unimelb.edu... (Graeme O'K... graeme.okeefe@petnm.unimelb.edu... (Graeme O'K... 0 days 17:04:32 6 1.000000
4018 alan.mcintyre@gmail.... (Alan McIntyre) ellisonbg.net@gmail.... (Brian Granger) 0 days 00:00:00 1 0.000000

4019 rows × 5 columns

The printed values below display the counts associated for a given number of replies.

We can see that many of the interactions have a relatively small amount of replies. One possible explanation for this large amount may be having many interactions that are merely a follow-up or question followed by a thank you response (we can explore this further by parsing the message bodies in arx.data but for now we will just speculate).


In [14]:
print("corresponding counts for number of replies up to 19")
print(("number of replies", "frequency of occurence"))
for i in range(20):
    print((i, len(allpairs[allpairs['num_replies'] <= i]) - len(allpairs[allpairs['num_replies'] <= i - 1])))


corresponding counts for number of replies up to 19
('number of replies', 'frequency of occurence')
(0, 0)
(1, 1902)
(2, 818)
(3, 332)
(4, 260)
(5, 123)
(6, 101)
(7, 67)
(8, 68)
(9, 40)
(10, 45)
(11, 24)
(12, 25)
(13, 14)
(14, 16)
(15, 12)
(16, 20)
(17, 8)
(18, 12)
(19, 9)

In [15]:
plt.hist(allpairs['num_replies'])
plt.title("Number of replies")


Out[15]:
<matplotlib.text.Text at 0x7f98cff3fb50>

To get a better idea of what's going on for larger values, let's look at the rows that have number of replies greater than 5.


In [1]:
greaterThanFive = allpairs[allpairs['num_replies'] > 5]['num_replies']
counts = greaterThanFive.value_counts()
counts.plot()


---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-1-67ef11ee0123> in <module>()
----> 1 greaterThanFive = allpairs[allpairs['num_replies'] > 5]['num_replies']
      2 counts = greaterThanFive.value_counts()
      3 counts.hist()

NameError: name 'allpairs' is not defined

The graph seems to follow a power law which is expected for this type of data.

Now let's see if we can find any patters between the number of replies and reciprocity. Intuitively, we would expect that the number of replies be positively associated with reciprocity but let's see...

We will first look at the data for which the number of replies is greater than 5 to possibly get rid of some noise (later on we will explore the data without removing these entries).

Below we divided reciprocity and number of replies into completely arbitrary bins as shown below. Hopefully, this will make it easier to see patters between these two variables as they have quite a bit of noise.

(The genId and genNumReplies functions just give each entry a corresponding label for graphing purposes later on. These labels are based on which bin a given entry falls under)


In [16]:
#Completely arbitrary bins

#Group A reciprocity between (0, .25]
#Group B reciprocity between (.25, .5] 
#Group C reciprocity between (.5, .75]  
#Group D reciprocity between (.75, 1.00]

#"low" number of replies less than or equal to 10
#"moderate" number of replies between 10 and 20
#"high" replies greater than 20 replies 

def genId(num):
    if num <= .25:
        return 'A.(0, .25]'
    if num <= .5:
        return "B.(.25, .5]"
    if num <= .75:
        return "C.(.5, .75]"
    return "D.(.75, 1.00]"

def genNumReplies(num):
    if num <= 10:
        return 'a.low'
    if num <= 20:
        return "b.moderate"
    return "c.high"

The following lines generate a data frame that contains three columns: 1) Number of replies 2) Id corresponding to replies bin 3) Id corresponding to reciprocity bin

(The extra letters such as the a in "a.low" are just used so that pandas orders the columns in the way we want)


In [17]:
moreThanFive = allpairs[allpairs['num_replies'] > 5]
recipVec = moreThanFive['reciprocity']
numReplies = moreThanFive['num_replies']
ids = recipVec.apply(lambda val: genId(val))
groupedRep = numReplies.apply(lambda val: genNumReplies(val))
groupsdf = pd.DataFrame({"num_replies": numReplies, "ids": ids, "grouped_num_replies": groupedRep})
groupsdf


Out[17]:
grouped_num_replies ids num_replies
2 b.moderate D.(.75, 1.00] 16
11 b.moderate A.(0, .25] 18
13 a.low D.(.75, 1.00] 6
30 c.high D.(.75, 1.00] 52
32 b.moderate D.(.75, 1.00] 14
33 a.low D.(.75, 1.00] 6
34 a.low C.(.5, .75] 7
39 c.high D.(.75, 1.00] 64
46 b.moderate D.(.75, 1.00] 13
47 a.low D.(.75, 1.00] 6
51 a.low C.(.5, .75] 7
52 c.high D.(.75, 1.00] 55
57 a.low D.(.75, 1.00] 8
65 a.low B.(.25, .5] 6
86 b.moderate D.(.75, 1.00] 18
96 a.low B.(.25, .5] 6
102 a.low B.(.25, .5] 6
105 b.moderate D.(.75, 1.00] 13
109 a.low D.(.75, 1.00] 6
116 c.high C.(.5, .75] 58
121 a.low D.(.75, 1.00] 9
125 a.low C.(.5, .75] 7
127 a.low B.(.25, .5] 7
136 b.moderate D.(.75, 1.00] 16
139 a.low B.(.25, .5] 6
148 c.high D.(.75, 1.00] 22
155 b.moderate C.(.5, .75] 18
156 c.high D.(.75, 1.00] 22
170 b.moderate C.(.5, .75] 12
172 a.low D.(.75, 1.00] 6
181 a.low B.(.25, .5] 8
193 b.moderate C.(.5, .75] 16
206 b.moderate D.(.75, 1.00] 12
207 a.low A.(0, .25] 6
214 a.low A.(0, .25] 8
215 a.low D.(.75, 1.00] 9
220 a.low C.(.5, .75] 7
223 a.low D.(.75, 1.00] 6
224 a.low B.(.25, .5] 7
231 a.low D.(.75, 1.00] 10
233 a.low B.(.25, .5] 6
236 a.low D.(.75, 1.00] 8
237 c.high C.(.5, .75] 39
242 b.moderate D.(.75, 1.00] 12
245 a.low C.(.5, .75] 7
252 b.moderate C.(.5, .75] 12
256 b.moderate D.(.75, 1.00] 12
264 a.low C.(.5, .75] 7
265 b.moderate D.(.75, 1.00] 11
272 a.low C.(.5, .75] 10
284 b.moderate D.(.75, 1.00] 16
288 a.low D.(.75, 1.00] 6
296 b.moderate C.(.5, .75] 12
297 c.high D.(.75, 1.00] 80
306 c.high D.(.75, 1.00] 28
324 b.moderate C.(.5, .75] 12
333 c.high C.(.5, .75] 39
337 a.low D.(.75, 1.00] 10
344 a.low D.(.75, 1.00] 8
356 a.low C.(.5, .75] 7
... ... ...

587 rows × 3 columns

Now that we have this data frame lets look at the corresponding histograms for each "level" of reciprocity.


In [18]:
grpA = groupsdf[groupsdf["ids"] == "A.(0, .25]"]['num_replies']
grpB = groupsdf[groupsdf["ids"] == "B.(.25, .5]"]['num_replies']
grpC = groupsdf[groupsdf["ids"] == "C.(.5, .75]"]['num_replies']
grpD = groupsdf[groupsdf["ids"] == "D.(.75, 1.00]"]['num_replies']
grpA.value_counts().hist()
plt.title("Number of Replies for Reciprocity between 0-.25")


Out[18]:
<matplotlib.text.Text at 0x107e4c710>

In [19]:
grpB.value_counts().hist()
plt.title("Number of Replies for Reciprocity between .25-.5")


Out[19]:
<matplotlib.text.Text at 0x108255650>

In [20]:
grpC.value_counts().hist()
plt.title("Number of Replies for Reciprocity between .5-.75")


Out[20]:
<matplotlib.text.Text at 0x108604650>

In [21]:
grpD.value_counts().hist()
plt.title("Number of Replies for Reciprocity between .75-1.0")


Out[21]:
<matplotlib.text.Text at 0x1086fdad0>

It's pretty hard to compare the four histograms so let's create a contingency table for the groupsdf data frame.


In [22]:
crossed = pd.crosstab(groupsdf["grouped_num_replies"], groupsdf["ids"])
crossed


Out[22]:
ids A.(0, .25] B.(.25, .5] C.(.5, .75] D.(.75, 1.00]
grouped_num_replies
a.low 27 77 84 135
b.moderate 13 13 45 78
c.high 7 6 26 76

3 rows × 4 columns


In [23]:
crossed.plot()


Out[23]:
<matplotlib.axes.AxesSubplot at 0x1088f4750>

Since each reciprocity group has a different amount of counts, let's normalize the counts to get a better picture of what's going on.

We will first normzalize column-wise, that is for say column A.[0,.25] we will sum the total number of responses and get the relative proportions for the replies bins.


In [24]:
crossed.apply(lambda r: r/sum(r), axis=0)


Out[24]:
ids A.(0, .25] B.(.25, .5] C.(.5, .75] D.(.75, 1.00]
grouped_num_replies
a.low 0.574468 0.802083 0.541935 0.467128
b.moderate 0.276596 0.135417 0.290323 0.269896
c.high 0.148936 0.062500 0.167742 0.262976

3 rows × 4 columns

We see that at the very extremes, namely reciprocity between 0-.25 and reciprocity between .75-1.0, there are some clear differences; reciprocity seems to be positively associated with the number of replies as we had initially expected.

On the other hand, the bin for reciprocity between .25-.5 weakens this association as this bin seems as if it should swap positions with bin A. However, since the bin widths we chose were completely arbitrary it may explain this paradox.

The fact that the extremes seem to follow our expectations is quite interesting; it provides some evidence that if we choose our bin sizes appropriately, we can perhaps get a nice positive association.


In [25]:
crossed.apply(lambda r: r/sum(r), axis=0).plot()
plt.title("normalized (columnwise) plot")


Out[25]:
<matplotlib.text.Text at 0x108d04890>

Now will do the normalization by row. This will give us the relative proportion of some bin for number of replies is distributed across the bins for reciprocity.


In [26]:
crossed.apply(lambda r: r/sum(r), axis=1)


Out[26]:
ids A.(0, .25] B.(.25, .5] C.(.5, .75] D.(.75, 1.00]
grouped_num_replies
a.low 0.083591 0.238390 0.260062 0.417957
b.moderate 0.087248 0.087248 0.302013 0.523490
c.high 0.060870 0.052174 0.226087 0.660870

3 rows × 4 columns


In [27]:
crossed.apply(lambda r: r/sum(r), axis=1).plot()
plt.title("normalized (row-wise) plot")


Out[27]:
<matplotlib.text.Text at 0x1095535d0>

Now let's go back and do the exact same thing but not removing entries with a very low amount of replies.


In [28]:
recipVec2 = allpairs['reciprocity']
numReplies2 = allpairs['num_replies']
ids = recipVec2.apply(lambda val: genId(val))
groupedRep2 = numReplies2.apply(lambda val: genNumReplies(val))
groupsdf2 = pd.DataFrame({"num_replies": numReplies2, "ids": ids, "grouped_num_replies": groupedRep2})

In [29]:
crossed2 = pd.crosstab(groupsdf2["grouped_num_replies"], groupsdf2["ids"])
crossed2


Out[29]:
ids A.(0, .25] B.(.25, .5] C.(.5, .75] D.(.75, 1.00]
grouped_num_replies
a.low 2253 422 170 883
b.moderate 13 13 45 78
c.high 7 6 26 76

3 rows × 4 columns


In [30]:
crossed2.plot()


Out[30]:
<matplotlib.axes.AxesSubplot at 0x1096042d0>

In [31]:
crossed2.apply(lambda r: r/sum(r), axis=0)


Out[31]:
ids A.(0, .25] B.(.25, .5] C.(.5, .75] D.(.75, 1.00]
grouped_num_replies
a.low 0.991201 0.956916 0.705394 0.851495
b.moderate 0.005719 0.029478 0.186722 0.075217
c.high 0.003080 0.013605 0.107884 0.073288

3 rows × 4 columns


In [32]:
crossed2.apply(lambda r: r/sum(r), axis=0).plot()


Out[32]:
<matplotlib.axes.AxesSubplot at 0x1096bfe90>

Now we will look at various scatterplots for different variables to get a rough sense of how our data is spread.


In [33]:
plt.scatter(allpairs.num_replies, allpairs.reciprocity)
plt.title("number of replies vs. reciprocity")


Out[33]:
<matplotlib.text.Text at 0x10a1d7710>

In [34]:
allpairs['duration'] = allpairs['duration'].apply(lambda x: x.item() / pow(10,9))
plt.scatter(allpairs.duration, allpairs.num_replies)
plt.title("duration vs. number of replies")


Out[34]:
<matplotlib.text.Text at 0x10a266850>

Now let's look at some scatterplots for the entries with number of replies greater than 5.


In [35]:
df_filt = allpairs[allpairs['num_replies'] > 5]
plt.scatter(df_filt.reciprocity, df_filt.duration)
plt.title("reciprocity vs. duration")


Out[35]:
<matplotlib.text.Text at 0x10a483690>

In [36]:
plt.scatter(df_filt.reciprocity, df_filt.duration.apply(lambda x: math.log(x)))
plt.title("reciprocity vs. log of duration")


Out[36]:
<matplotlib.text.Text at 0x10a5db490>

In [38]:
plt.scatter(df_filt.duration.apply(lambda x: math.log(x+1)), df_filt.num_replies.apply(lambda x: math.log(x+1)))
plt.title("log of duration vs. log of number of replies")


Out[38]:
<matplotlib.text.Text at 0x10a7f1190>

Since we actually have the bodies of each message, we will now procceed by seeing if there are any patterns between the type of messages sent and reciprocity, duration, and the number of replies.

As a very rough measure, we have created a function calMessageLen that calculates the length of a given message.


In [39]:
def calMessageLen(message):
    if message == None:
        return 0
    return len(message)

arx.data['length'] = arx.data['Body'].apply(lambda x: calMessageLen(x))
arx.data


Out[39]:
From Subject Date In-Reply-To References Body length
Message-ID
<NEBBIECAMLMAAKHEGPCGKEBHCLAA.travis@vaught.net> travis at vaught.net (Travis N. Vaught) [SciPy-dev] SciPy Developer mailing list now o... 2001-06-11 02:10:51 None None The link:\n\nhttp://scipy.net/mailman/listinfo... 116
<Pine.LNX.4.33.0107231957590.15960-100000@oliphant.ee.byu.edu> oliphant at ee.byu.edu (Travis Oliphant) [SciPy-dev] RPMs and source distribution 2001-07-24 02:01:00 <02f001c111bf$2e78a9d0$777ba8c0@190xb01> None I've been playing for hours and finally have i... 203
<87snfmn8o1.fsf@jeeves.blindglobe.net> rossini at blindglobe.net (A.J. Rossini) [SciPy-dev] RPMs and source distribution 2001-07-24 06:27:42 <Pine.LNX.4.33.0107231957590.15960-100000@olip... <Pine.LNX.4.33.0107231957590.15960-100000@olip... >>>>> "TO" == Travis Oliphant <oliphant at ee.... 800
<Pine.LNX.4.33.0107240041500.16169-100000@oliphant.ee.byu.edu> oliphant at ee.byu.edu (Travis Oliphant) [SciPy-dev] RPMs and source distribution 2001-07-24 06:46:36 <87snfmn8o1.fsf@jeeves.blindglobe.net> None > >>>>> "TO" == Travis Oliphant <oliphant at e... 753
<87itgisti1.fsf@jeeves.blindglobe.net> rossini at blindglobe.net (A.J. Rossini) [SciPy-dev] RPMs and source distribution 2001-07-24 06:58:46 <Pine.LNX.4.33.0107240041500.16169-100000@olip... <Pine.LNX.4.33.0107240041500.16169-100000@olip... >>>>> "TO" == Travis Oliphant <oliphant at ee.... 700
<20010725005337.PHSJ11181.tomts14-srv.bellnexxia.net@localhost> tjlahey at mud.cgl.uwaterloo.ca (Tim Lahey) [SciPy-dev] Building SciPy on Mac OS X 2001-07-25 00:53:00 None None All,\n\nI've decide that I'm going to tackle g... 882
<20010725034411.SATM11181.tomts14-srv.bellnexxia.net@localhost> tjlahey at mud.cgl.uwaterloo.ca (Tim Lahey) [SciPy-dev] Building SciPy on Mac OS X Part II 2001-07-25 03:43:46 None None All,\n\nAs I mentioned in my previous message,... 518
<20010801231139.YWP4521.tomts13-srv.bellnexxia.net@localhost> tjlahey at mud.cgl.uwaterloo.ca (Tim Lahey) [SciPy-dev] Splines in SciPy 2001-08-01 23:09:41 None None All,\n\nGetting the new version of SciPy from ... 796
<024e01c11b4e$f5510050$7600a8c0@ericlaptop> eric at scipy.org (eric jones) Fw: [SciPy-dev] Splines in SciPy 2001-08-02 12:30:42 None None Hey Tim,\n\n I just noticed this addition too.... 2031
<Pine.LNX.4.33.0108021551360.838-100000@sugar.ee.byu.edu> oliphant at ee.byu.edu (Travis Oliphant) [SciPy-dev] Spline module 2001-08-02 21:55:24 <200108021700.f72H03D17694@scipy.org> None >\n> Getting the new version of SciPy from CVS... 2023
<00e601c11bc5$0dbea630$c300a8c0@ericlaptop> eric at scipy.org (eric jones) [SciPy-dev] Spline module 2001-08-03 02:36:09 None <Pine.LNX.4.33.0108021551360.838-100000@sugar.... I'm no splines expert, but I'd hope there was ... 3106
<200108031856.OAA29753@mud.cgl.uwaterloo.ca> tjlahey at mud.cgl.uwaterloo.ca (Tim Lahey) [SciPy-dev] Re: Splines module 2001-08-03 18:56:28 <200108031700.f73H01D31118@scipy.org> from "sc... None > \n> Date: Thu, 2 Aug 2001 15:55:24 -0600 (MD... 2380
<005101c12a92$ce8e2b20$ec88fea9@ericlaptop> eric at scipy.org (eric jones) [SciPy-dev] RPMs and source distribution 2001-08-21 22:44:15 None <Pine.LNX.4.33.0107231957590.15960-100000@olip... Hey Joe,\n\nDebian packages would be good. Yo... 2361
<87u1z1j90m.fsf@phantom.ecn.uiowa.edu> jmr at engineering.uiowa.edu (Joe Reinhardt) [SciPy-dev] RPMs and source distribution 2001-08-21 23:19:53 <87snfmn8o1.fsf@jeeves.blindglobe.net>\n (ross... <Pine.LNX.4.33.0107231957590.15960-100000@olip... Did this debian package ever materialize? \n... 991
<009f01c12aaa$3bee89a0$ec88fea9@ericlaptop> eric at scipy.org (eric jones) [SciPy-dev] AIX isinf, isfinite, etc. 2001-08-22 01:31:57 None None The good news:\n\nAlmost all of scipy now comp... 667
<NEBBIECAMLMAAKHEGPCGCEKICMAA.travis@enthought.com> travis at scipy.org (Travis N. Vaught) [SciPy-dev] RPMs and source distribution 2001-08-22 03:44:22 <87u1z1j90m.fsf@phantom.ecn.uiowa.edu> None We haven't heard anything yet about a working ... 1635
<87u1z01ef6.fsf@jeeves.blindglobe.net> rossini at blindglobe.net (A.J. Rossini) [SciPy-dev] RPMs and source distribution 2001-08-22 12:12:45 <NEBBIECAMLMAAKHEGPCGCEKICMAA.travis@enthought... <NEBBIECAMLMAAKHEGPCGCEKICMAA.travis@enthought... >>>>> "TNV" == Travis N Vaught <travis at scip... 885
<lg13d6klyt3.fsf@pet.ecn.uiowa.edu> jmr at engineering.uiowa.edu (Joe Reinhardt) [SciPy-dev] RPMs and source distribution 2001-08-22 18:44:24 <87u1z01ef6.fsf@jeeves.blindglobe.net>\n (ross... <NEBBIECAMLMAAKHEGPCGCEKICMAA.travis@enthought... rossini at blindglobe.net (A.J. Rossini) write... 875
<20010902195926.A20656@myrddin.caltech.edu> kern at caltech.edu (Robert Kern) [SciPy-dev] LAPACK is not thread-safe (AFAICT) 2001-09-03 02:59:26 None None Disclaimer: I'm not a FORTRAN programmer or a ... 1213
<3B93B249.A3E8B37D@home.com> europax at home.com (Rob) [SciPy-dev] documentation 2001-09-03 16:39:38 None None Is there a non-html version of the documentati... 388
<00c101c1370e$f6758010$c100a8c0@ericlaptop> eric at scipy.org (eric jones) [SciPy-dev] scipy.linalg and LAPACK 3.0 2001-09-06 20:03:13 None <20010906133610.A18337@myrddin.caltech.edu> I'd say the latter of the two. I started lina... 1743
<20010906133610.A18337@myrddin.caltech.edu> kern at caltech.edu (Robert Kern) [SciPy-dev] scipy.linalg and LAPACK 3.0 2001-09-06 20:36:10 None None Hi,\n\nSome of the routines wrapped in generic... 508
<86d74cr9q2.fsf@bock.chem.unc.edu> jochen at unc.edu (Jochen =?iso-8859-1?q?K=FCp... [SciPy-dev] SciPy on Cygwin 2001-09-27 14:26:13 None None I am trying to compile SciPy (cvs) on latest C... 3216
<Pine.LNX.4.33.0109271117580.25675-100000@oliphant.ee.byu.edu> oliphant at ee.byu.edu (Travis Oliphant) [SciPy-dev] Re: Scipy-dev digest, Vol 1 #11 - ... 2001-09-27 17:19:26 <200109271700.f8RH02U04182@scipy.org> None > 1. SciPy on Cygwin (Jochen =?iso-8859-1?q... 1431
<Pine.LNX.4.21.0109271959570.22161-100000@cens.ioc.ee> pearu at cens.ioc.ee (Pearu Peterson) [SciPy-dev] Re: Scipy-dev digest, Vol 1 #11 - ... 2001-09-27 18:10:57 <Pine.LNX.4.33.0109271117580.25675-100000@olip... None On Thu, 27 Sep 2001, Travis Oliphant wrote:\n\... 1367
<Pine.LNX.4.21.0109272015040.22161-100000@cens.ioc.ee> pearu at cens.ioc.ee (Pearu Peterson) [SciPy-dev] Re: Scipy-dev digest, Vol 1 #11 - ... 2001-09-27 18:16:32 <Pine.LNX.4.21.0109271959570.22161-100000@cens... None On Thu, 27 Sep 2001, Pearu Peterson wrote:\n\n... 196
<20010927124852.A18567@myrddin.caltech.edu> kern at caltech.edu (Robert Kern) [SciPy-dev] Re: Scipy-dev digest, Vol 1 #11 - ... 2001-09-27 19:48:52 <Pine.LNX.4.21.0109271959570.22161-100000@cens... <Pine.LNX.4.33.0109271117580.25675-100000@olip... On Thu, Sep 27, 2001 at 08:10:57PM +0200, Pear... 1637
<20010927164848.Q1356@dothill.com> jason at tishler.net (Jason Tishler) [SciPy-dev] Re: SciPy on Cygwin 2001-09-27 20:48:48 <86d74cr9q2.fsf@bock.chem.unc.edu> None Jochen,\n\nOn Thu, Sep 27, 2001 at 10:26:13AM ... 777
<86g097pgqt.fsf@bock.chem.unc.edu> jochen at jochen-kuepper.de (Jochen =?iso-8859... [SciPy-dev] SciPy on Cygwin 2001-09-28 14:48:13 <86d74cr9q2.fsf@bock.chem.unc.edu> <86d74cr9q2.fsf@bock.chem.unc.edu> A little further, but now I am having linking ... 4848
<20010928135700.X1356@dothill.com> jason at tishler.net (Jason Tishler) [SciPy-dev] SciPy on Cygwin 2001-09-28 17:57:00 <86g097pgqt.fsf@bock.chem.unc.edu> None Jochen,\n\nOn Fri, Sep 28, 2001 at 10:48:13AM ... 5089
<Pine.LNX.4.21.0109281946030.31117-100000@cens.ioc.ee> pearu at cens.ioc.ee (Pearu Peterson) [SciPy-dev] SciPy on Cygwin 2001-09-28 18:03:10 <86g097pgqt.fsf@bock.chem.unc.edu> None On 28 Sep 2001, Jochen K?pper wrote:\n\n> Runn... 802
<20010930142118.16379.qmail@lisboa.ifm.uni-kiel.de> jhauser at ifm.uni-kiel.de (Janko Hauser) [SciPy-dev] Documentation and then some 2001-09-30 14:21:18 None None Hi, I saw the notice for the new documentation... 1643
<5.1.0.14.2.20010930132153.00a7beb8@pop.fas.harvard.edu> wsryu at fas.harvard.edu (William Ryu) [SciPy-dev] Re: Scipy-dev digest, Vol 1 #14 - ... 2001-09-30 17:25:03 <200109301701.f8UH11U00314@scipy.org> None At 12:01 PM 9/30/2001 -0500, you wrote:\n>From... 1022
<20010930214531.16525.qmail@lisboa.ifm.uni-kiel.de> jhauser at ifm.uni-kiel.de (Janko Hauser) [SciPy-dev] Re: Scipy-dev digest, Vol 1 #14 - ... 2001-09-30 21:45:31 <5.1.0.14.2.20010930132153.00a7beb8@pop.fas.ha... <200109301701.f8UH11U00314@scipy.org> <5.1.0.1... Sorry for the last mail if it actually came th... 197
<wkofnegqee.fsf@lee-morgan.net> python at lee-morgan.net (python at lee-morgan... [SciPy-dev] scipy plt can only plot once? 2001-10-11 15:14:33 None None After investigation its due to a division erro... 1169
<KPEIKEPEIBGNGNKHDILIEEEPCEAA.travis@enthought.com> travis at scipy.org (Travis N. Vaught) [SciPy-dev] scipy plt can only plot once? 2001-10-11 15:22:01 <wkofnegqee.fsf@lee-morgan.net> None plt.figure() should create another wxFrame ins... 1786
<DGEHJAIMAIENCEHBIHCJAEGACIAA.altis@semi-retired.com> altis at semi-retired.com (Kevin Altis) [SciPy-dev] scipy plt can only plot once? 2001-10-11 17:29:01 <KPEIKEPEIBGNGNKHDILIEEEPCEAA.travis@enthought... None I'm new to scipy, but I'm trying out the tutor... 3671
<wk669lmllp.fsf@lee-morgan.net> python at lee-morgan.net (python at lee-morgan... [SciPy-dev] scipy plt can only plot once? 2001-10-12 06:13:54 None None > \n>Travis N. Vaught\n>\n>plt.figure() shoul... 269
<01eb01c15349$14069be0$c100a8c0@ericlaptop> ej at ee.duke.edu (eric jones) [SciPy-dev] scipy plt can only plot once? 2001-10-12 18:09:46 None <DGEHJAIMAIENCEHBIHCJAEGACIAA.altis@semi-retir... ----- Original Message -----\nFrom: "Kevin Alt... 1029
<DGEHJAIMAIENCEHBIHCJEEJFCIAA.altis@semi-retired.com> altis at semi-retired.com (Kevin Altis) [SciPy-dev] SciPy versus Matlab, Excel, and ot... 2001-10-15 17:39:46 None None I asked a number of friends involved in scienc... 1162
<86r8rzcy55.fsf@bock.chem.unc.edu> jochen at unc.edu (Jochen =?iso-8859-1?q?K=FCp... [SciPy-dev] cvs problems? 2001-10-19 17:55:50 None None -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA1... 996
<m34rottvkf.fsf@box.home.de> jochen at jochen-kuepper.de (Jochen =?iso-8859... [SciPy-dev] plt 2001-10-21 05:24:00 None None -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA1... 1104
<Pine.LNX.4.10.10110211647340.14279-100000@pc103.maths.bris.ac.uk> a.backer at bristol.ac.uk (Arnd Baecker) [SciPy-dev] Link problem with scipy on SUN ? 2001-10-21 20:49:42 None None Hi,\n\nwhen trying to install scipy I ran into... 2009
<033101c15bd7$82d0e8f0$777ba8c0@ericlaptop> ejones17 at austin.rr.com (ERIC JONES) [SciPy-dev] plt 2001-10-23 15:29:26 None <m34rottvkf.fsf@box.home.de> Hey Jochen,\n\n> Is there a good reason not to... 2026
<033501c15bd7$87062e30$777ba8c0@ericlaptop> ejones17 at austin.rr.com (ERIC JONES) [SciPy-dev] cvs problems? 2001-10-23 15:29:38 None <86r8rzcy55.fsf@bock.chem.unc.edu> Sorry bout that. Some files were added and gr... 1603
<033e01c15bdb$b5c38660$777ba8c0@ericlaptop> ejones17 at austin.rr.com (ERIC JONES) [SciPy-dev] Link problem with scipy on SUN ? 2001-10-23 15:59:34 None <Pine.LNX.4.10.10110211647340.14279-100000@pc1... Hey Arnd,\n\nShort answer:\n\nSun has only bee... 3874
<03a801c15be9$a77e3ba0$777ba8c0@ericlaptop> ejones17 at austin.rr.com (ERIC JONES) Fw: [SciPy-dev] Link problem with scipy on SUN ? 2001-10-23 17:39:15 None <Pine.LNX.4.10.10110231837420.17942-100000@pc1... Hey,\n\nSorry that was a typo.\n\nI meant\n\n ... 8889
<m37ktl3kfu.fsf@box.home.de> jochen at jochen-kuepper.de (Jochen =?iso-8859... [SciPy-dev] cvs problems? 2001-10-24 01:17:57 <033501c15bd7$87062e30$777ba8c0@ericlaptop> <86r8rzcy55.fsf@bock.chem.unc.edu>\n\t<033501c... -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA1... 854
<m3k7xl1udk.fsf@box.home.de> jochen at jochen-kuepper.de (Jochen =?iso-8859... [SciPy-dev] wxplt 2001-10-24 05:26:15 None None Patch against current cvs, cleaning up wildcar... 1976
<86zo6h2ilo.fsf@bock.chem.unc.edu> jochen at unc.edu (Jochen =?iso-8859-1?q?K=FCp... [SciPy-dev] PlotCanvas 2001-10-24 15:13:50 None None A non-text attachment was scrubbed...\nName: p... 206
<000b01c15cd1$8755c530$6600a8c0@ericlaptop> ejones17 at austin.rr.com (eric jones) [SciPy-dev] PlotCanvas 2001-10-24 21:19:03 None <86zo6h2ilo.fsf@bock.chem.unc.edu> Hey Jochen,\n\nThe figure() method is actually... 3010
<m3pu7c2z8g.fsf@box.home.de> jochen at jochen-kuepper.de (Jochen =?iso-8859... [SciPy-dev] SciPy versus Matlab, Excel, and ot... 2001-10-25 03:08:15 <DGEHJAIMAIENCEHBIHCJEEJFCIAA.altis@semi-retir... <DGEHJAIMAIENCEHBIHCJEEJFCIAA.altis@semi-retir... Kevin, All,\n\njust stumbled over this. Maybe ... 3639
<m3elns2vkw.fsf_-_@box.home.de> jochen at jochen-kuepper.de (Jochen =?iso-8859... [SciPy-dev] Re: PlotCanvas 2001-10-25 04:27:11 <000b01c15cd1$8755c530$6600a8c0@ericlaptop> <86zo6h2ilo.fsf@bock.chem.unc.edu>\n\t<000b01c... On Wed, 24 Oct 2001 17:19:03 -0400 eric jones ... 2906
<004701c15d55$d889d700$c400a8c0@ericlaptop> ejones17 at austin.rr.com (eric jones) [SciPy-dev] reading ascii files into arrays 2001-10-25 13:06:22 None <18646.1003998017@www7.gmx.net> > Hi Eric !\n>\n> I have decided to use python... 2512
<87vgh3lvh8.fsf@jeeves.blindglobe.net> rossini at blindglobe.net (A.J. Rossini) [SciPy-dev] SciPy versus Matlab, Excel, and ot... 2001-10-25 13:06:43 <m3pu7c2z8g.fsf@box.home.de> <DGEHJAIMAIENCEHBIHCJEEJFCIAA.altis@semi-retir... >>>>> "Jochen" == Jochen K?pper <jochen at joc... 1245
<005e01c15d58$d09845b0$c400a8c0@ericlaptop> ejones17 at austin.rr.com (eric jones) [SciPy-dev] Re: PlotCanvas 2001-10-25 13:27:37 None <86zo6h2ilo.fsf@bock.chem.unc.edu><000b01c15cd... > Not exactly. What I really need is to tell p... 1656
<007501c15d5b$66ae9890$c400a8c0@ericlaptop> ejones17 at austin.rr.com (eric jones) [SciPy-dev] SciPy versus Matlab, Excel, and ot... 2001-10-25 13:46:08 None <DGEHJAIMAIENCEHBIHCJEEJFCIAA.altis@semi-retir... I'm not from the camp of "Excel bad, Command l... 3176
<Pine.LNX.4.33L2.0110251154480.26035-100000@oliphant.ee.byu.edu> oliphant at ee.byu.edu (Travis Oliphant) [SciPy-dev] Reading in arrays. 2001-10-25 16:03:25 <200110251607.f9PG7E526198@scipy.org> None As eric pointed out reading arrays of ASCII da... 2289
<DGEHJAIMAIENCEHBIHCJCEHHCJAA.altis@semi-retired.com> altis at semi-retired.com (Kevin Altis) [SciPy-dev] SciPy versus Matlab, Excel, and ot... 2001-10-25 16:08:00 <87vgh3lvh8.fsf@jeeves.blindglobe.net> None Don't shoot the messenger. :) My purpose in br... 3880
<00f501c15d82$124380f0$c400a8c0@ericlaptop> eric at scipy.org (eric jones) [SciPy-dev] Reading in arrays. 2001-10-25 18:22:57 None <Pine.LNX.4.33L2.0110251154480.26035-100000@ol... > As eric pointed out reading arrays of ASCII ... 4142
... ... ... ... ... ... ...

20405 rows × 7 columns


In [ ]: