I want to record gui data into text file using switch case

I want to write answers of questionnare ,which i have been designed in GUI with group of radio buttons, into a text file which is called DATASET.txt .Every button groups have 9 answer corresponding 9 radio buttons. For example; if the user selects Valance1 (that is Tag) that will be written in the text file 1.

i is the user id and must increase one by one.

The output in the text file may be like that:

i V A L D

1 6 5 9 3

2 1 2 3 5

3 2 5 3 5

4 6 2 6 5

That is my code;

Valance_SelectionChangedFcn(hObject, eventdata, handles)
switch get(get(handles.Valance,'SelectedObject'),'Tag')
    case 'Valance1'
         V=1;
    case 'Valance2'
        V=2;
    case 'Valance3'
        V=3;
    case 'Valance4'
         V=4;
    case 'Valance5'
         V=5;
    case 'Valance6'
         V=6;
    case 'Valance7'
         V=7;
    case 'Valance8'
         V=8;
    case 'Valance9'
         V=9;
    
end    
 Arousal_SelectionChangedFcn(hObject, eventdata, handles)
switch get(get(handles.Arousal,'SelectedObject'),'Tag')
     case 'Arousal1'
        A=1;
    case 'Arousal2'
        A=2;
    case 'Arousal3'
        A=3;
    case 'Arousal4'
        A=4;
    case 'Arousal5'
       A=5;
    case 'Arousal6'
        A=6;
    case 'Arousal7'
       A=7;
    case 'Arousal8'
        A=8;
    case 'Arousal9'
        A=9;
    
end
Dominance_SelectionChangedFcn(hObject, eventdata, handles)
switch get(get(handles.Dominance,'SelectedObject'),'Tag')
    case 'Dominance1'
        D=1;
    case 'Dominance2'
       D=2;
    case 'Dominance3'
         D=3;
    case 'Dominance4'
         D=4;
    case 'Dominance5'
         D=5;
    case 'Dominance6'
        D=6;
    case 'Dominance7'
        D=7;
    case 'Dominance8'
        D=8;
    case 'Dominance9'
         D=9;
    
end
Liking_SelectionChangedFcn(hObject, eventdata, handles)
switch get(get(handles.Liking,'SelectedObject'),'Tag')
     case 'Liking1'
       L=1;
    case 'Liking2'
       L=2;
    case 'Liking3'
       L=3;
    case 'Liking4'
       L=4;
    case 'Liking5'
        L=5;
    case 'Liking6'
        L=6;
    case 'Liking7'
       L=7;
    case 'Liking8'
        L=8;
    case 'Liking9'
        L=9;
    
end
    
X = [i; V; A; D; L];
fileID = fopen('DATASES.txt','w');
fprintf(fileID,'%s %s %s %s %s\n','i','V','A','D','L');
fprintf(fileID,'%d %d %d %d %d\n',i, V, A, D, L);
fclose(fileID);

But that code was error. According to warning; V A D L aren't defined variables. By the way beginning of code that was't appear in that context i defined i (user id) .

So can anyone help me :((

Answer 1

[Adam]

Your 'otherwise' blocks are empty and you don't create a default variable first so it is possible that each of those variables may never get defined.

surely if your options are tagged so clearly though you can just do a simple char manipulation instead of all these switch cases.

e.g.

likingOption = get(get(handles.Liking,'SelectedObject'),'Tag');
L = likingOption( end );

[Rik]

49 is the char value of 1. You can easily adapt the code Adam suggested.

likingOption = get(get(handles.Liking,'SelectedObject'),'Tag');
L = likingOption( end ) - '0';

Any value outside the range you expect will mean that the Tag has a value you didn't expect.

[cansu]

Thanks guys @Rik , @Adam !! It works as you said :)