function isminphaseflag = isminphase(f,sec)
%ISMINPHASE  Determine if filter object has minimum-phase sections.
%   FLAG = ISMINPHASE(F) determines if the filter object F has
%   minimum-phase filter sections, and returns 1 if true and 0 if
%   false.
%
%   FLAG = ISMINPHASE(F,I) determines if the I-th section of the
%   filter object F is a minimum-phase section and returns 1 if true
%   and 0 if false.
%
%   Since LATCMA filter objects always have minimum-phase sections,
%   this function always returns one.
%
%   See also DFILT/ISMINPHASE, LATCMAX/ISMAXPHASE, DFILT/ISMAXPHASE.

%   Author(s): R. Losada
%   Copyright 1988-2000 The MathWorks, Inc.
%   $Revision: 1.2 $  $Date: 2000/06/13 21:22:04 $ 

error(nargchk(1,2,nargin));

isminphaseflag = 1; 
     
