Matlab - Habilitar pushbutton al ingresar datos en varios edit

function teclados_especiales_OpeningFcn(hObject, eventdata, handles, varargin)

handles.output = hObject;

set(handles.pushbutton1,'enable','off')

guidata(hObject, handles);

function edit1_Callback(hObject, eventdata, handles)

dato=str2double(get(hObject,'String'))

set(handles.pushbutton1,'enable','on')