error in getting output using pushbutton

hi everyone..

im trying read a .fis file and evaluate it provided inputs from popupmenus,radiobuttons and textfield.i have written the following code.

function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
fismat=readfis('oralcancer_rulebase.fis');
out=evalfis([popupmenu2value popupmenu3value popupmenu4value num smokingvalue alcoholvalue gendervalue tumorsitevalue],fismat);
msgbox(sprintf('%d',out));

the following code is function of one of the popupmenu

function popupmenu2_Callback(hObject, eventdata, handles)
% hObject    handle to popupmenu2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: contents = cellstr(get(hObject,'String')) returns popupmenu2 contents as cell array
%        contents{get(hObject,'Value')} returns selected item from popupmenu2
contents1=get(handles.popupmenu2, 'String');
popupmenu2value=contents1{get(handles.popupmenu2, 'Value')};
switch popupmenu2value
    case '1'
        handles.value=1;
    case '2'
        handles.value=2;
    case '3'
        handles.value=3;
    case '4a'
        handles.value=4;
    case '4b'
        handles.value=5;
    case 'x'
        handles.value=6;
end

but im getting errors as follows

Undefined function or variable 'popupmenu2value'.

Error in testgui>pushbutton1_Callback (line 261)
out=evalfis([popupmenu2value popupmenu3value popupmenu4value num smokingvalue
alcoholvalue gendervalue tumorsitevalue],fismat);

Error in gui_mainfcn (line 96)
        feval(varargin{:});

Error in testgui (line 42)
    gui_mainfcn(gui_State, varargin{:});

Error in
@(hObject,eventdata)testgui('pushbutton1_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating uicontrol Callback

please provide me any solution. any kind of help will be appreciated

Answer 1

[Geoff Hayes]

srinija - the variable popupmenu2value is local to the popupmenu2_Callback function only and so is not accessible from the pushbutton1_Callback function. If you want to use that value in the pushbutton callback then you can just determine it as you are doing already in the other callback. Try

 function pushbutton1_Callback(hObject, eventdata, handles)
 contents1=get(handles.popupmenu2, 'String');
 popupmenu2value=contents1{get(handles.popupmenu2, 'Value')};
 fismat=readfis('oralcancer_rulebase.fis');
 % etc.

But then you will have the same problem with all the other variables that you are trying to use that haven't been defined in your pushbutton callback

 out=evalfis([popupmenu2value popupmenu3value popupmenu4value num smokingvalue alcoholvalue gendervalue tumorsitevalue],fismat);

You will need to define these variables within the pushbutton callback if you wish to make use of them (or save them to the handles structure in the other callbacks and then access them here through the struct).

[srinija kammari]

actually i cannot use popupmenu2value because it will have string value.so i think i should store handles.value in some other variable

[srinija kammari]

im new to matlab please provide me solution

[srinija kammari]

i have changed the code as follows

function alcohol_SelectionChangeFcn(hObject, eventdata)
handles=guidata(hObject);
alcoholvalue= get(eventdata.NewValue, 'Tag');
switch alcoholvalue
    case 'yes'
        handles.value=1;
    case 'no'
        handles.value=0;
end
handles.input6 =handles.value;
guidata(hObject,handles);

and callback function as

function pushbutton1_Callback(hObject, eventdata, handles)
fismat=readfis('oralcancer_rulebase.fis');
out=evalfis([handles.input1 handles.input2 handles.input3 handles.input4 handles.input5 handles.input6 handles.input7 handles.input8],fismat);
msgbox(sprintf('%d',out));

but im getting error as reference to nonexistent variable input6...

[Walter Roberson]

You have not guaranteed that alcohol_SelectionChangeFcn has ever been executed. A selection change function is not run when you initialize the ui object, only when the user selects something else.

[srinija kammari]

thanks a lot Walter Roberson... i got the answer