adding same variables to single .mat file

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

Answer 1

[Matt Kindig]

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