Extract Specific RANGE of columns in numpy array Python

Question

I have an array :

e = np.array([[ 0,  1,  2,  3, 5, 6, 7, 8],
              [ 4,  5,  6,  7, 5, 3, 2, 5],
              [ 8,  9, 10, 11, 4, 5, 3, 5]])
         


        

Answer 1

You can just use e[:, 1:5] to retrive what you want.

In [1]: import numpy as np

In [2]: e = np.array([[ 0,  1,  2,  3, 5, 6, 7, 8],
   ...:               [ 4,  5,  6,  7, 5, 3, 2, 5],
   ...:               [ 8,  9, 10, 11, 4, 5, 3, 5]])

In [3]: e[:, 1:5]
Out[3]:
array([[ 1,  2,  3,  5],
       [ 5,  6,  7,  5],
       [ 9, 10, 11,  4]])

https://docs.scipy.org/doc/numpy/reference/arrays.indexing.html