storing data from function

Hi,

I have this code in my function file: [sound, freq] = wavread(file) and for some reason sound and freq are not being stored in the workspace. What am I doing wrong?

[Jonathan]

But when I enter [sound, freq] = wavread(file) into the command line, the variables store in the workspace.

Answer 1

[Oleg Komarov]

If you're using wavread inside a function then you have to return them to your base workspace explicitly because the workspace of a function is kept separate.

Example, will not return sound and freq to the base workspace:

function foo(file)
[sound, freq] = wavread(file)
end

You have to declare the outputs explicitly:

function [sound, freq] = foo(file)
[sound, freq] = wavread(file)
end

and call it as

[out1,out2] = foo(file)

[Jonathan]

I tried that. sound and freq show up in the command line, but not in the workspace.

[Jonathan]

nevermind, I had a bit of code at the very end that wasn't defined so the function wasn't finishing. Thanks for the help!

Answer 2

[Stephen]

So, you have:

function something

[sound, freq] = wavread(file);

end

? If so, you need to output those values like

function [sound, freq] = something

then when you call the function, it will spit out those values. Otherwise, they only exist in the temporary workspace of the function, which gets cleared out when it's done

[Jonathan]

I tried that. sound and freq show up in the command line, but not in the workspace.

[Jonathan]

nevermind, I had a bit of code at the very end that wasn't defined so the function wasn't finishing. Thanks for the help!

[nazrin mokhtar]

i have same problem to save in workspace...can i know how to solve it