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Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: speeding up ACCUMARRAY
Replies: 12   Last Post: Nov 15, 2012 3:35 AM

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james bejon

Posts: 214
Registered: 3/13/10
Re: speeding up ACCUMARRAY
Posted: Nov 13, 2012 1:27 PM
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I must admit, I've always found accumarray to be remarkably fast, e.g.,

% DATA
subs = ceil(rand(1000000,1)*10);

% ENGINE
tic
for i = 1:1000
accumarray(subs, 1);
end
toc

% Result = 1.40 seconds

Is there a specific usage you have in mind?



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