MATLAB: Cell multiplication with a vector

Question

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

Answer 1

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