You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: evofftGUI.m
    path of file: ./repos/acycle/code/guicode
    
    the code of the file until where you have to start completion: function varargout = evofftGUI(varargin)
% evofftGUI MATLAB code for evofftGUI.fig
%      evofftGUI, by itself, creates a new evofftGUI or raises the existing
%      singleton*.
%
%      H = evofftGUI returns the handle to a new evofftGUI or the handle to
%      the existing singleton*.
%
%      evofftGUI('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in evofftGUI.M with the given input arguments.
%
%      evofftGUI('Property','Value',...) creates a new evofftGUI or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI befo
    
function evofft_Nyquist_radiobutton_KeyPressFcn(hObject, eventdata, handles)
% hObject    handle to evofft_Nyquist_radiobutton (see GCBO)
% eventdata  structure with the following fields (see MATLAB.UI.CONTROL.UICONTROL)
%	Key: name of the key that was pressed, in lower case
%	Character: character interpretation of the key(s) that was pressed
%	Modifier: name(s) of the modifier key(s) (i.e., control, shift) pressed
% handles    structure with handles and user data (see GUIDATA)


% --- Executes on selection change in listbox2.
function listbox2_Callback(hObject, eventdata, handles)
% hObject    handle to listbox2 (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 listbox2 contents as cell array
%        contents{get(hObject,'Value')} returns selected item from listbox2
handles.index_selected  = get(hObject,'Value');
guidata(hObject,handles)

% --- Executes during object creation, after setting all properties.
function listbox2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to listbox2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: listbox 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