How to change global variable value with radio button?

I have 2 group button like this, and global variables where d_u and d_a must changed if Data test and performance goal clicked.

how to change global variable value if one of the button clicked?

help me please :)

[Geoff Hayes]

Angaa - you will need a callback for your radio button group. But do you really need a global variable? Have you created your GUI with GUIDE, App Designer, or programmatically?

[Angga]

firstly i create with GUIDE.

Um, im not sure if i need global variable, i just stuck here for an hours, can you explain to me to create the code for callback radio button group?

thanks before Geoff :)

Answer 1

[Geoff Hayes]

Angga - instead of putting your radio buttons in a panel (which I think you may have done but I can't be sure) you would use a Button Group instead. So from the GUIDE editor, you would select the Button Group control/widget and drag it on to your GUI. You would then place the radio buttons within this group. See Button Group Callbacks for how to add a callback to this group so that the callback will fire whenever a radio button (from that group) is changed.

An alternative to global variables is to use the handles structure that is passed around to all callbacks in your GUI. See Store or retrieve UI data for details.