Matlab - Programación de un Grupo de Botones

function uipanel1_SelectionChangeFcn(hObject, eventdata, handles)

handles.marcado=eventdata.NewValue;

guidata(hObject, handles);

set(handles.marcado,'BackGroundColor',[1 0 0])

handles.marcado=eventdata.NewValue;

handles.obtenertag=get(handles.marcado,'Tag');

guidata(hObject, handles);

function myui

close all

bg = uibuttongroup('Visible','on',...

                  'Title','botones',...

                  'Position',[0 0 .2 1],...

                  'tag','uibuttongrupo11',...

                  'SelectionChangedFcn',@bselection);

% Create three radio buttons in the button group.

r1 = uicontrol(bg,'Style',...

                  'radiobutton',...

                  'String','Option 1',...

                  'Position',[10 350 100 30],...

                  'Tag','boton1',...

                  'value',0,...

                  'HandleVisibility','on');

r2 = uicontrol(bg,'Style','radiobutton',...

                  'String','Option 2',...

                  'Position',[10 250 100 30],...

                  'Tag','boton2',...

                  'value',0,...

                  'HandleVisibility','off');

bg.Visible = 'on';

    function bselection(~,event)

      Variable_Tag= event.OldValue.Tag

    end

 end

>> myui

Variable_Tag =

boton1

Variable_Tag =

boton2