Matlab - Usar solo un edit en GUI para capturar datos hasta formar una matriz

function varargout = leer_datos_en_guide(varargin)

gui_Singleton = 1;

gui_State = struct('gui_Name',       mfilename, ...

                   'gui_Singleton',  gui_Singleton, ...

                   'gui_OpeningFcn', @leer_datos_en_guide_OpeningFcn, ...

                   'gui_OutputFcn',  @leer_datos_en_guide_OutputFcn, ...

                   'gui_LayoutFcn',  [] , ...

                   'gui_Callback',   []);

if nargin && ischar(varargin{1})

    gui_State.gui_Callback = str2func(varargin{1});

end

if nargout

    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});

else

    gui_mainfcn(gui_State, varargin{:});

end

function leer_datos_en_guide_OpeningFcn(hObject, eventdata, handles, varargin)

global n i  total

i=1;

n=[];

total=6;

handles.output = hObject;

guidata(hObject, handles);

function varargout = leer_datos_en_guide_OutputFcn(hObject, eventdata, handles)

varargout{1} = handles.output;

function edit1_Callback(hObject, eventdata, handles)

function pushbutton1_Callback(hObject, eventdata, handles)

global n i total

if i<=total

    n(i)=str2double(get(handles.edit1,'String'))

    set(handles.edit1,'String','');

    i=i+1;

end

function pushbutton2_Callback(hObject, eventdata, handles)

global n total

total=i;

display('terminó el proceso')

>> leer_datos_en_guide

n =

     4

n =

     4     7

termino el proceso