The given error is very clear and simple. The error says, you are trying to extract more number of elements then present from the array.
Example:
A = rand(1,10) ; % array of size 1x10
A(1) % first element
A(end) % last element
A(10) % last element
A(12) % error, as there is no 12th element
In your case, check the dimensions of array and run the loop properly. Learn about debugging the code, this will help you to rectify your error easily.
