Given a cell array, find the longest string

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Joseph Williams
Joseph Williams 2013-2-15
Preferably without using loops, I need to find the longest string in a cell array. So with an example array such as the following, in what ways could I go about this? If there are multiple entries with the same length, I need to be able to find both of them.
I'd like to see a way to do it with loops as well.
Pete Townshend Toyota Gene Simmons Steve Jobs Socrates Frank Sinatra Astronomy Idaho Sweatshirt
Thanks

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Azzi Abdelmalek
Azzi Abdelmalek 2013-2-15
编辑：Azzi Abdelmalek 2013-2-15
a={'Pete' 'Townshend1' 'Simmons' 'Steve' 'Sinatra' 'Idaho' 'Sweatshirt'}
val=cellfun(@(x) numel(x),a)
out=a(val==max(val))
%With a loop
for k=1:numel(a)
val(k)=numel(a{k})
end
out=a(val==max(val))
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Jan
Jan 2013-2-15
编辑：Jan 2013-2-15
cellfun('length', a) is much more efficient, because the string methods of cellfun() are determined inside the MEX function, while the anonymous functions need to call Matlab for each argument. Unfortunately these string methods are marked as "backward compatibility" feature only in the documentation, but this is an understatement.

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