how can I load a part of .mat file in matlab

Question

I've a mat file with 24 variables inside and I would like to load only the 100 first value of the variables named Var1 and Var2 in the mat file.

Answer 1

This utility on the File Exchange looks like it may do the job.

Answer 2

Have a look at the matfile function (should be available from 2011b on). The documentation explains it pretty well.

obj = matfile('test.mat')
% save a variable
obj.foo = magic(30);
% load a variable
obj.foo(5:10,3:4)

Answer 3

In previous versions this is unfortunately not possible, see here

Best option would thus be to load in all variables and then create new variables containing only the first 100 values.