adding same variables to single .mat file

2012 3 27
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Hello,
I have 30 .mat files [data_1,data_2...data_30] containing same variable x with different values (row vectors) each of size x(1x3800000) stored in them.
I want to save them all in a single .mat file as a matrix y(30x3800000).
How can I do it? Please provide the syntax.
Thanks

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Matt Kindig
Matt Kindig 2012-3-27

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y = NaN(30, 3800000); %pre-allocation
for k=1:30,
S = load( sprintf('data_%d.mat', k));
y(k,:) = S.x;
end
save 'y.mat' y

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