Checking if variable exists in GUI

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Jakub
Jakub el 12 de Abr. de 2013
Hi, in my GUI i want to check if variable m exists and if so do some stuff with it and if it doesnt exist do something else...I have solution using ishandle function but there are some problems with it and i have to make m global variable and i dont want to. Thanks for help!!

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Walter Roberson
Walter Roberson el 12 de Abr. de 2013
if exist('m', 'var')
Or is 'm' not in the current workspace?
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Jakub
Jakub el 15 de Abr. de 2013
I have to make m global variable, which is sad. And if m is global variable , it exists but it doesnt containt any value. So one solution is to make m global variable and then instead of ifexist use isempty.

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