CODEWITHSUNDEEP
pythonnumpy
Rodrigo Forti
Rodrigo Forti

Reputation: 356

Making bigger matrices out of smaller matrices in Python

I have a problem making a bigger matrix out of smaller matrixs.

Lets suppose i have the matrices:

      1 2 3
  A=  4 5 6
      7 8 9

and

      1 0 0 
  B=  0 1 0
      0 0 1

The result i want to get is

    1 2 3 1 0 0
C = 4 5 6 0 1 0
    7 8 9 0 0 1

If I'm to do this in MATLab it would be as simple as doing C = [A B]

But I'm working with python at the momment.

How could one do that thing in python?

Btw, in python the matrices A and B would be made by my program and they would be ndarrays (at my problem, they are 15000x1626 arrays, or matrices, if needed to be).

Thanks alot for the help.

Upvotes: 1

Views: 1234

Answers (1)

JoshAdel
JoshAdel

Reputation: 68692

try using np.hstack:

C = np.hstack((A,B))

or np.concanenate:

C = np.concatenate((A,B),axis=1)

Upvotes: 2

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