www.gusucode.com > signal 工具箱matlab源码程序 > signal/@dfilt/@basefilter/getinfoheader.m
function str = getinfoheader(h) %GETINFOHEADER Return the header to the info % Copyright 1988-2013 The MathWorks, Inc. % Setup the title string if isreal(h), typestr = 'real'; else typestr = 'complex'; end if isfromdesignfilt(h) if isfir(h), str = ['FIR Digital Filter (', typestr,')']; else str = ['IIR Digital Filter (', typestr,')']; end else if isfir(h), typestr = ['FIR Filter (', typestr,')']; else typestr = ['IIR Filter (', typestr,')']; end str = ['Discrete-Time ',typestr]; end % [EOF]