Best way to write to a structure

I am writing a function that takes a structure composed of:

data.rawdat 
data.header

and does some manipulations of the rawdat, then hopefully will write back to the structure. But this is more difficult than I thought it was. So I have structures with different filenames that are easily accessed. When I call my function:

processdata(data)

It has no problem accessing data.rawdat, no matter what the real name of my structure is. But my question is, how do I retrieve the real name of my structure and write back to it? I need to turn the variable name I input into something like:

realname.processed_data

to write the output.

Thanks for taking a look!

Answer 1

[Walter Roberson]

No, just return something from the function.

function TheStruct = processdata(TheStruct)
  ....
end

and call it as

data = processdata(data)

Answer 2

[Matthew]

Are you kidding me? That is way too easy. Sorry to bother. Thanks.