In MATLAB how is it possible to select a certain data portion from a big file of data?

I have a time series data which I am loading. I want to know how to plot only a segment of the data. What are the commands in MATLAB for that?

Answer 1

[Adam]

If you have it in memory then just e.g.

A = rand(500,500,500);
figure; plot( A(:,:,33)
figure; plot( A(22,:,:)
figure; imagesc( squeeze( A(:,99,99) );

If the data is too big to load all of it into memory to plot a small part of it then

doc matfile

should help. It allows you to access data on disk as though it were in memory, using indexing just like above, but with A represented by a matfile.