Hello guys I wrote the following code, but it takes ages to complete. Could you please help me optimizing it? A and B are matrixes
for i=1:length(A) for j=1:length(B) CCI = CCI + heaviside(norm(A(i,:)-B(j,:))); end end
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Not necessarily faster, prettier, less confusing or better in any way with the exception of being on one line and containing the awesomeness that is bsxfun:
CCI2 = sum(sum(heaviside(sqrt(sum(bsxfun(@minus,A,reshape(B',1,size(B,2),size(B,1))).^2,2)))))