I had a matrix s of size 4*12540, i want to use only 4*4 of this matrix how should i remove extra columns?

I had a matrix s of size 4*12540, i want to use only 4*4 of this matrix how should i remove extra columns?

Answer 1

[Dishant Arora]

A = yourArray(:,1:4);

or

yourArray(:,5:end) = [];

[amina mehmood]

thank you it works

Answer 2

[Joseph Cheng]

If you want to completely remove these columns you can use [] ;

example:

Testmatrix = rand(4,12540);
Testmatrix(:,5:end) = [];%All rows in columns 5 through end are blank;