Error in the Code shown below:

handles.text_ch         = [];     % Vector of the Test Fields

Offset = 0;
for range = 1:32
set(handles.text_ch(range), 'String', sprintf('%d', range + Offset * 32));
end

Error is:

Index exceeds array bounds.
Error in GUI_OpeningFcn (line 122)
set(handles.text_ch(range), 'String', sprintf('%d', range + Offset * 32));

Please help me.

Answer 1

[Guillaume]

Isn't the error obvious? You defin handles.text_ch as an empty array and then try to access its elements 1 to 32. Since it's empty it doesn't even have an element at index 1.

Put at least 32 elements in that handles.text_ch variable. Note that these 32 elements should be some sort of uicontrol.

[Mohsin]

Please tell me .. whats that mean that these 32 elements should be some sort of uicontrol?

[Guillaume]

Isn't this your code? How come you don't understand what it does?

Clearly, the line:

set(handles.text_ch(range), 'String', sprintf('%d', range + Offset * 32));

is intended to change the String property of a uicontrol (or similar item).

[Mohsin]

Yes this string will change the unicontrol property. But how can i initialize the handles.text_ch variable, other then []. I didn't get the point.

[Guillaume]

The code you show is meant to change the String property of 32 different UI controls. Hence you need to put the handle of 32 UI controls into handle.text_ch. How you do this, I can't tell you since I've no idea how you create these 32 controls in the first place. If you create them in code, put their handle in handle.text_ch when you create them.