cell multiplication with a vector

2013 6 13
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Hi,
I have a cell structure (Aa), where each cell is a square sparse matrix and I need to multiply each cell with a vector (fi) to produce a matrix Aaf.
my code to do this is:
Aaf=zeros(numel(sig),length(Aa));
for j=1:length(Aa);
Aaf(:,j)=Aa{j}*fi;
end
but it seems to be pretty ineffective, so I' ve tried to evaluate it using a cellfun, but it doesn't work
Aaf_test = cellfun(@(x) x * fi(:,1),Aa);
Does anybody know ho do the multiplication faster than the for loop?
thanks

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Azzi Abdelmalek
Azzi Abdelmalek 2013-6-13

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Aaf_test = cellfun(@(x) x * fi,Aa,'un',0);

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David Kusnirak
David Kusnirak 2013-6-13
it works well thanks, but yields even worse performance, than the for loop..shame

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