www.gusucode.com > rctobsolete 工具箱 matlab源码程序 > rctobsolete/mutools/commands/unum.m
% function numinputs = unum(mat) % % Returns number of inputs of SYSTEM matrix. % Returns column dimension of a CONSTANT matrix. % Returns column dimension of a VARYING matrix. % Returns 0 for a EMPTY matrix. % % See also: MINFO, XNUM, YNUM. % Copyright 1991-2004 MUSYN Inc. and The MathWorks, Inc. function numinputs = unum(mat) if nargin == 0 disp('usage: numinputs = unum(mat)'); else [mtype,mrows,mcols,mnum] = minfo(mat); if strcmp(mtype,'empt') numinputs = 0; else numinputs = mcols; end end