How to do summation columnwise and create the structure array of summed values.

I have matrix with dimension 1125 * 1128. I want to do summation of every 141 columns and so on. Then store the output in data structure array. Like that there will 8 suumed out in structure array.

Answer 1

[KSSV]

You can achieve it by using reshape and sum.

First, reshape your matrix into a 3D matrix and then apply/ do what you want.

R = 1125;          % Number of rows
C = 1128;          % Number of columns

newC = 141;       % New number of rows

A = randi(10, [R C]);  % 1125x1128 array of random integers
B = reshape(A, [R newC C/newC]);

In the above, you can do what you want in the matrix B.