Using a function to create a global variable in the workspace

2011 3 22
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I'm making a GUI to replace one m file, the m file creates several variables in the workspace and now I want to do the same in the GUI, some of the variables need to have global in their attributes, how can I use assignin or set the attribute in order to have global variables?
Thanks in advance and sorry for such a basic question, I searched before asking but didn't found the answer.

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Walter Roberson
Walter Roberson 2011-3-22

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evalin(caller, 'global foo; foo=12345;');

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Paulo Silva
Paulo Silva 2011-3-22
evalin('caller', 'global foo; foo=12345;');
seems to work fine, thanks Walter
Is it possible to change the variables attributes like we do with the set function for objects?
Walter Roberson
Walter Roberson 2011-3-22
I have not seen any reference to such a method. Global variables are considered to exist in a different workspace.

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