change fuction from if to switch statement

% --- Executes during object creation, after setting all properties.
function sliderText_CreateFcn(hObject, ~, ~)
% hObject    handle to sliderText (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called
 
%sets the slider value to start at 1
set(hObject,'String', 1);
 
% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end

[Rik]

What exactly do you want to change? I would suggest not using GUIDE in the first place, but which if do you want to replace with a switch?

If you want to learn more about GUIs in Matlab, I can recommend this thread.

[Walter Roberson]

%sets the slider value to start at 1
set(hObject,'String', 1);

That is incorrect. String property for a slider is the label, not the value range or current value. The lowest permitted value is controlled by the slider Min property, and the highest permitted value is controlled by the slider Max property, and the current value is controlled by the slider Value property.