In [1]:

    

import datetime as dt

import numpy as np

import os, sys
sys.path.append(os.path.abspath('../../main/python'))
import thalesians.tsa.numpyutils as npu


    

In [2]:

    

npu.sign(-10)


    

    
Out[2]:





-1

In [3]:

    

npu.sign(0)


    

    
Out[3]:





0

In [4]:

    

npu.sign(10)


    

    
Out[4]:





1

In [5]:

    

npu.sign(-10.)


    

    
Out[5]:





-1.0

In [6]:

    

npu.sign(0.)


    

    
Out[6]:





0.0

In [7]:

    

npu.sign(10.)


    

    
Out[7]:





1.0

In [8]:

    

npu.sign(dt.date(2017, 11, 7) - dt.date(2017, 11, 8))


    

    
Out[8]:





-1.0

In [9]:

    

npu.sign(dt.date(2017, 11, 8) - dt.date(2017, 11, 8))


    

    
Out[9]:





0.0

In [10]:

    

npu.sign(dt.date(2017, 11, 8) - dt.date(2017, 11, 7))


    

    
Out[10]:





1.0

In [11]:

    

npu.sign(dt.datetime(2017, 11, 8, 17, 27) - dt.datetime(2017, 11, 8, 17, 28))


    

    
Out[11]:





-1.0

In [12]:

    

npu.sign(dt.datetime(2017, 11, 8, 17, 28) - dt.datetime(2017, 11, 8, 17, 28))


    

    
Out[12]:





0.0

In [13]:

    

npu.sign(dt.datetime(2017, 11, 8, 17, 28) - dt.datetime(2017, 11, 8, 17, 27))


    

    
Out[13]:





1.0

In [14]:

    

npu.sign([-10., 0., 10.])


    

    
Out[14]:





array([-1.,  0.,  1.])

In [15]:

    

npu.sign(np.array([
    npu.sign(dt.datetime(2017, 11, 8, 17, 27) - dt.datetime(2017, 11, 8, 17, 28)),
    npu.sign(dt.datetime(2017, 11, 8, 17, 28) - dt.datetime(2017, 11, 8, 17, 28)),
    npu.sign(dt.datetime(2017, 11, 8, 17, 28) - dt.datetime(2017, 11, 8, 17, 27))
]))


    

    
Out[15]:





array([-1.,  0.,  1.])