20150111_2DPlotsonPythonP3

Two-dimensional plots on Python [Part III]

Support material for the blog post "Two-dimensional plots on Python [Part III]", on Programming Science.

de Siqueira, Alexandre Fioravante. "Two-dimensional plots on Python [Part III]". Programming Science. 2015, Jan 11. Available at http://www.programmingscience.org/?p=42. Access date: (please put your access date here).

Copyright (C) Alexandre Fioravante de Siqueira

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Several plots in one window.

  • Two plots in one window, different rows.

In [1]:
from pylab import *
 
t = arange(0.0,2.0,0.01)
y1 = sin(2*pi*t)
y2 = cos(2*pi*t)
 
fig, ax = subplots(2, sharex=True)
 
ax[0].plot(t, y1, color='green', linestyle='-.', linewidth=3)
ax[1].plot(t, y2, color='red', linestyle=':', linewidth=3)
 
show()


  • Two plots in one window, different columns.

In [2]:
from pylab import *
 
t = arange(0.0,2.0,0.01)
y1 = sin(2*pi*t)
y2 = cos(2*pi*t)
 
fig, ax = subplots(1, 2, sharex=True)

ax[0].plot(t, y1, color='green', linestyle='-.', linewidth=3)
ax[1].plot(t, y2, color='red', linestyle=':', linewidth=3)
 
show()


  • Five plots in one window, different rows.

In [3]:
# fig, ax = subplots(5, sharex=True)
  • subplot(): plots in 3 rows, and 2 columns.

In [4]:
# fig, ax = subplots(3, 2, sharex=True)
  • Plots of trigonometric functions divided in the same window.

In [5]:
from pylab import *
 
t = arange(0.0,2.0,0.01)
 
fig, ax = subplots(3, 2, sharex=True)
 
ax[0, 0].plot(t, sin(pi/8*t), color='green', linestyle='-', linewidth=3)
ax[0, 1].plot(t, cos(pi/8*t), color='red', linestyle='--', linewidth=3)
ax[1, 0].plot(t, tan(pi/8*t), color='cyan', linestyle='-.', linewidth=3)
ax[1, 1].plot(t, 1/cos(pi/8*t), color='magenta', linestyle=':', linewidth=3)
ax[2, 0].plot(t, 1/sin(pi/8*t), color='yellow', linestyle='--', linewidth=3)
ax[2, 1].plot(t, 1/tan(pi/8*t), color='black', linestyle=':', linewidth=3)
 
show()


/home/jaguar/.virtualenvs/cv/lib/python3.5/site-packages/ipykernel/__main__.py:11: RuntimeWarning: divide by zero encountered in true_divide
/home/jaguar/.virtualenvs/cv/lib/python3.5/site-packages/ipykernel/__main__.py:12: RuntimeWarning: divide by zero encountered in true_divide

In [ ]: