function clear(this)
%  CLEAR  Clears Pole Zero data.

%  Author(s): Kamesh Subbarao
%  Copyright 1986-2004 The MathWorks, Inc.
%  $Revision: 1.1.6.2 $ $Date: 2004/04/11 00:22:01 $

set(this, 'Poles', [], 'Zeros', []);