I have a 256 by 256 matrix, lets say it is called m.
I would like to sum specific elements from a specific row in that matrix.
For example, just looking at row 1, I would like to sum the following of these elements:
1-4, (multiples of 16) + 1, (multiples of 16) + 2, (multiples of 16) + 3, and (multiples of 16) + 4.
Therefore I will end up with a single value for each row of the matrix.
Please can somebody help me with the coding for this?
Thank you
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