MATLAB: I have a mxn binary logical matrix . How to sum ones

column additionsmatrix arraymatrix manipulation

regards

sum(YourMatrix(:))             %grand total
sum(YourMatrix(:,[3 17 21])    %totals for columns 3, 17, 21

sum(yourMatrix,2)-yourMatrix(:,1);

Assuming you're on R2015b or later, this is extremely easy:

A = [1 2 3;4 5 6];
M = 2;
N = 2;

A_int = repelem(A, M, N)