How to combine 2 numpy.ndarray in numpy

Question

I have the following 2 arrays:

k=arange(1,100)
m=arange(1,100)

Then how to append or combine them into an array with 2 columns and 99 rows?

Answer 1

vstack, hstack and transpose are your friends for things like this.

>>> vstack([k,m]).transpose()
array([[ 1,  1],
       [ 2,  2],
       [ 3,  3],
       ...
       [98, 98],
       [99, 99]])