Replacing a nested for-loop

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Hey everyone!
I am doing pairwise comparisons of strings in a cell array using a function that I wrote. Right now I have it in a nested for-loop that looks like this
D = {'string1','string2','stringn'}
for k = 1:numel(D)
for j = k:numel(D)
M(k,j) = myfunction(D{k},D{j});
This runs fairly slow. My question is there a faster way to do these pairwise comparisons using something like arrayfun?
Azzi Abdelmalek
Azzi Abdelmalek on 7 Sep 2013
what is myfunction?

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Accepted Answer

Walter Roberson
Walter Roberson on 7 Sep 2013
No. arrayfun() uses a for loop internally, so it is no faster.
You should consider vectorizing "myfunction".
  1 Comment
Ryan on 7 Sep 2013
Thank you for the comment

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