www.gusucode.com > signal 工具箱matlab源码程序 > signal/@filtdes/@abstractFilterType/abstractFilterType.m
function varargout = abstractFilterType %ABSTRACTFILTERTYPES Constructor for the filter type object. % Author(s): R. Losada % Copyright 1988-2003 The MathWorks, Inc. narginchk(0,0); % This class is abstract, for now error in the constructor error(message('signal:filtdes:abstractFilterType:abstractFilterType:AbstractClass'));