loading a dataset (S=load('file_name'), how?

I have a 512*513 matlab dataset, saved as "file_name.mat". If I use load('file_name'), I can have the dataset loaded as 'data'. But I want it to be named as "S", and tried to use S=load('file_name'), but "S" has the structure informations only.

How can I load 'file_name' in 'S'? thanks!

Answer 1

[Fangjun Jiang]

Once you loaded,

S=data;
clear data;

Answer 2

[Daniel Shub]

Even better would be

temp=load('file_name');
S = temp.data;
clear temp;

[Ken]

THANKS! This works, and clear!!