I agree with Stephen, but have a slughtly more pessimistic opinion:
No, it is not possible, at least not in the general case. You could parse the file and recognize some trivial definitions like:
But as soon as it gets more complex, you need a sophisticated parser. Of course you can create such a parser, but this would be a duplicate of Matlab. And even then the code must be interpreted to get all values, e.g. in:
It is a good programming practice, to separate the processing, the gui and the data strictly. Instead of storing a bunch of values inside the function, a MAT file is much better, most of all if the data are needed anywhere else also.
