passing arrays between functions?

I have two fields in a file which are arrays. I've loaded them in one callback function of a gui. But I need them in another callback function for some calculations. How do I do this?

[Dennis]

https://de.mathworks.com/help/matlab/creating_guis/share-data-among-callbacks.html

[Stephen23]

• If you are using GUIDE then use guidata.
• If you are sensibly writing your own code then use nested functions:

https://www.mathworks.com/help/matlab/matlab_prog/nested-functions.html