How do I fix the error Function definitions are not permitted at the prompt or in scripts.

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neetika Karwasra 2011-12-12

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编辑： John Kelly 2015-2-26

whenever I write the command function imageChoice_callback(hObject,eventdata). Encounter an error Function definitions are not permitted at the prompt or in scripts. please suggest me how do i fix it.

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Answer 1

Sean de Wolski 2011-12-12

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在 MATLAB Online 中打开

Write in in an editor file and save it as the title of function, e.g:

function hello_world(hObject,evt)
  fprintf(2,'Hello World!');
end

saved in hello_world.m

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Walter Roberson 2011-12-12

Apply the solution Sean gave: write the sections that start with "function" into individual files.

The part before the first "function" line should be written into EZresize.m

neetika Karwasra 2011-12-12

then how can i connect these files to get the output

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Answer 2

Fangjun Jiang 2011-12-12

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编辑：John Kelly 2015-2-26

The message said so. You are not allowed to define a function in the command line or in a script file.

You need to create a separate .m file, where the first line, you define "function imageChoice_callback(hObject,eventdata)" and then save the file as imageChoice_callback.m.

Or, the function name sounds like belonging to a .m file for a GUI application. You should add this function in the .m file for that GUI application. The first line of that .m file should also be a "function ..." line. Otherwise, that .m file is called a script. You are not allowed to define a function in a script.

See Scripts and Functions

And support my campaign http://www.mathworks.com/matlabcentral/answers/7690-please-vote-if-you-want-to-have-m-function-in-m-script