Could anyone help me to fix the issue.

code:

a=[1 2;

3 4;

5 6;

7 8]

data=2;

dimension=2;

a=a(:,1+data:dimension+data);

If i run this i am getting index exceeds matrix dimensions

could anyone explain what is meant by index exceeds matrix dimensions and how it can be solved with respect to the above code.

Answer 1

[KSSV]

You have two columns in a ...but you are trying to extract four columns...so the error...

a=[1 2;
    3 4;
    5 6;
    7 8]
a=a(:,1:2);   % no error 
a = a(:,2:4) ;  % error