merge numpy array together

Question

a1=array([[0, 1, 2, 3, 4],
   [5, 6, 7, 8, 9]])
a2=array([[0, 1],
   [2, 3]])
a3 = array([[0, 1, 2, 3, 4, 0, 1],
   [5, 6, 7, 8, 9, 2, 3]])

I have two arrays a1,a2，I want to merge them together.the result is a3

Also, Concatenate two arrays vertically has your answer in the question itself. — Ajoy
– Ajoy, Commented May 20, 2015 at 2:28

farhawa · Accepted Answer · 2015-05-20 03:21:32Z

1

Using numpy np.concatenate() this way should work

 a3 = np.concatenate((a1,a2),axis = 1)

answered May 20, 2015 at 2:55

farhawa

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Comments

seven7e · Accepted Answer · 2015-05-20 06:40:36Z

1

np.c_[a1, a2]

also a np.r_ for row-wise merging.

answered May 20, 2015 at 6:40

seven7e

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