1.Create the two radio buttons in a button panel
2.Set the properties of each radio button.(tag,font,string,etc).lets assume tags be 'accel1_radiobutton' and 'accel2_radiobutton'.
Set the tag of button panel to 'acceleration_buttongroup'.
3.Add this line of code to the opening function
set(handles.acceleration_buttongroup, 'SelectionChangeFcn', @acceleration_buttongroup_SelectionChangeFcn);
4.Next,add the following function at the very end of .m file
function acceleration_buttongroup_SelectionChangeFcn(hObject, eventdata)
handles=guidata(hObject);
switch get(eventdata.Newvalue, 'Tag' )
case 'accel1_radiobutton'
handles.value= 1; %%any handle where value is to be stored
case accel2_radiobutton
%%similarly set the value '-1'
