Error with ismember in a loop for

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fede
fede 2016-4-11
评论： Walter Roberson 2016-4-11
Hi, I have the following code with the error: "Input A of class cell and input B of class cell must be cell arrays of strings, unless one is a string".
for ii=1:size(couple,1);
looking_up=couple(ii,:);
[tf, coldix]=ismember(looking_up,ff(ii,:));
prices=ff(:,coldix(tf));
prices=prices(2:end,:);
prices=cell2mat(prices);
x(ii)=prices(:,2);
y(ii)=prices(:,1);
end
where prices is a nxn matrix
stock_1 stock_2 ..... stock_n
45.5.....88.9......555.9
and so on
couple is a nx2 matrix:
stock_1 stock_2
stock_5 stock_8
and so on

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