MATLAB: I have a matrix (10,2), but when im using find(isnan) on this it becomes (1,10) can someone tell me why? i delet 10 of the nans

Question

a = ones(10,2)*nan b = 1:5; a(b,1) = b; a(b,2) = b; a(find(isnan(a))) = [];

Answer 1

found it myself

using a(isnan(a(:,1)),:) = []; and not

a(find(isnan(a))) = [];