saving workin space variable

I executed my file which consists 20 variables (stored in the workspace after execution). I want to save 1 variable called myvar.mat to save into my working directory.

So I used

>>save('myvar.mat')

but it stored all the 20 variables with name myvar.mat.

To save single variable what I have to do?

Answer 1

[per isakson]

Doc says:

save(filename, variables)

try

save('myfile.mat', 'myvar' )