GUI Call back Function Error!

Im trying to create a button that prompts user to select file to load and display.

       function loadbutton_Callback(hObject, eventdata, handles)
          [datafile datadir] = uigetfile('*.csv');
          end
When I run this code on a separate file it works but when I added to my code it gives this error
*Function definitions are not permitted in this context.*

Answer 1

[Adam]

What version of Matlab are you using?

I'm guessing you are not in the latest and your main file is a script which does not allow subfunctions.

Just change your script into a function by adding

function myMFilename( )

at the top, obviously replacing myMFilename with whatever is the name of your file.

or move this function into a file of its own somewhere on your path.

Answer 2

[Yasaman Best]

R2016a . It works if I run it in a separate file but shows error when I add it to my file! So odd

[Adam]

It isn't odd, it is for the reason I explained in my answer. Subfunction definitions are not allowed in a script. Apparently they are in the lastest version of Matlab, but I've never tried them. I try to avoid scripts as much as possible!