Game of Life GUI Question

I have been making a GUI to be an assistance program for The Game of LIFE by milton bradley. While doing this I have had some issues using pop up boxes to let the player select if they want to go to college at the start of the game. Here is the code I use to retreive the data out of the popup and bring it into the code so I can determine amount of career options for the player. Then after that is my push button to randomly pick your career. Everytime I try to excute this I get the error "Undefined function or variable 'collegechoice'.

Error in sblife>pfc1_Callback (line 337)

if collegechoice == 1

Error in gui_mainfcn (line 95)

feval(varargin{:});

Error in sblife (line 42)

gui_mainfcn(gui_State, varargin{:});

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)sblife('pfc1_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback."

function pbcollege1_Callback(hObject, eventdata, handles)
q=cellstr(get(hObject,'String'));
z=q{get(hObject,'Value')};
if (strcmp(z,'Select Choice'))
    collegechoice=0;
elseif (strcmp(z,'No, Skip College'))
    collegechoice=2;
elseif (strcmp(z,'Yes, Go To College'))
    collegechoice=1;
end
assignin('base','collegechoice',collegechoice);
function pbcollege1_CreateFcn(hObject, eventdata, handles)
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end
%push button for career
function pfc1_Callback(hObject, eventdata, handles)
if collegechoice == 1
   careers = randi(9);%used for if they selected yes from popup box
   set(handles.careerbox1,'Doctor');%just a place holder for when I actually get it working
end

Answer 1

[Steven Lord]

Would it be easier for you to use a questdlg dialog?

[Jacob Huhtala]

I have only really been working with matlab for a semster and a half now so I am not quite to sure how to use that in a GUI

[Jacob Huhtala]

Ok i have it so the box pops up but im not sure how to give it a numerical value

[Steven Lord]

Rather than putting code and controls in your GUI to ask the question, call questdlg to open a small dialog box and just use its output argument.

[Jacob Huhtala]

I got it thank you!