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: DQ_Table_GUI.m
    path of file: ./repos/erplab/GUIs
    
    the code of the file until where you have to start completion: function varargout = DQ_Table_GUI(varargin)
% DQ_TABLE_GUI MATLAB code for DQ_Table_GUI.fig
%      DQ_TABLE_GUI, by itself, creates a new DQ_TABLE_GUI or raises the existing
%      singleton*.
%
%      H = DQ_TABLE_GUI returns the handle to a new DQ_TABLE_GUI or the handle to
%      the existing singleton*.
%
%      DQ_TABLE_GUI('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in DQ_TABLE_GUI.M with the given input arguments.
%

    
function DQ_Table_GUI_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to DQ_Table_GUI (see VARARGIN)

% Choose default command line output for DQ_Table_GUI
handles.output = [];

% check input ERPset DQ
ERP = varargin{1};
ALLERP = varargin{2};
current_ERP = varargin{3};
guiwin_num = varargin{4}; 

%GUI positions (for multiple DQ tables)

if guiwin_num ~= 1
    offset_GUI = 25 * randi([1 10],1); %offset by
    % %set(hObject, 'Units', 'normalized');
    figureposition = get(handles.figure1, 'Position');
    set(hObject, 'Position', ...
        [ figureposition(1)-offset_GUI figureposition(2)-offset_GUI  ...
        figureposition(3) figureposition(4)])
end