How can I transfer data from one GUI to another one?

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So, I have 2 GUI's that I made using GUIDE instead of using code. And what I want now is, when I push a pushbutton, the second GUI opens and shows some information. This information is contained in a variable in the first GUI, so I need to transfer this variable to the second GUI but I don't know how...
I know one option is to save the variable in a .mat file and then load the file from the second GUI, but this method does'nt seems like the optimal one.
Sorry for my bad English!

Accepted Answer

Leah on 11 Apr 2013
You can also use a global variable or pass the value via the callback function. The callback function in this case is the function that opens the new GUI. Your English is great!

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