How to create an array

How to create an array

A = [0 0 0 0; 1 1 1 1; 2 2 2 2; 3 3 3 3; 4 4 4 4]

using the command "for" or other?

Answer 1

[Star Strider]

Use the repmat function:

A = repmat(0:4, 4, 1)';

A =
     0     0     0     0
     1     1     1     1
     2     2     2     2
     3     3     3     3
     4     4     4     4

[JRC]

Perfect Star Strider!

I didn´t know the command "repmat".

Thank you.

[Star Strider]

As always, my pleasure!

Another option for your particular problem is to use element-wise vector multiplication:

A = [0:4]'.*ones(1,4);

See the documentation on Array vs. Matrix Operations (link) for details.