Show image based on radio button selecetion with push button

% --- Executes on button press in pushbutton1.
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)
choice_location = get(handles.buttongroup,'SelectedObject');
choice = get(choice_location,'String');
if choice == 'Progresive Rock'
    imshow('pink_floyd.jpg')
end

so this is my gui's pushbutton part and my problem is if i add another if statement the new one wont work and i will get this error:

Error using  == 
Matrix dimensions must agree.

Error in untitled1>pushbutton1_Callback (line 92)
if choice == 'Progresive Rock'

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in untitled1 (line 42)
    gui_mainfcn(gui_State, varargin{:});

Error in @(hObject,eventdata)untitled1('pushbutton1_Callback',hObject,eventdata,guidata(hObject))

 
Error while evaluating UIControl Callback

how can i add more statement for those radio buttons to my push button?

Answer 1

[Geoff Hayes]

Yunus - when you are comparing strings, you need to use strcmp or strcmpi (else you will get the error you describe above since you are comparing two strings of different dimensions). Just change the code to

% --- Executes on button press in pushbutton1.
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)
choice_location = get(handles.buttongroup,'SelectedObject');
choice = get(choice_location,'String');
if strcmp(choice, 'Progresive Rock')
    imshow('pink_floyd.jpg')
end

[Yunus Alperen]

Oh, I totally forgot strcmp. Thanks alot.