How to concatenate vectors to matrix?

Question

I want to create a matrix from 3 vectors:

import numpy as np v1 = np.array([10, 0]) v2 = np.array([120, 9]) v3 = np.array([100, 7]) M = np.concatenate((v1, v2, v3)) print(M)

Results:

[10 0 120 9 100 7]

Desired results:

10 120 100 0 9 7

How to change the code in order to get the desired results ?

Djaouad · Accepted Answer · 2021-06-29 14:04:23Z

2

You can use np.stack with axis=1:

np.stack((v1, v2, v3), axis=1)

Output:

array([[ 10, 120, 100], [ 0, 9, 7]])

answered Jun 29, 2021 at 14:04

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Comments

Prajot Kuvalekar · Accepted Answer · 2021-06-29 14:09:57Z

import numpy as np v1 = np.array([10, 0]) v2 = np.array([120, 9]) v3 = np.array([100, 7]) M = np.stack(v1, v2, v3), axis=1) print(M)