## -*- texinfo -*- ## @deftypefn {Function File} {} FIRfilter () ## @deftypefnx {Function File} {} FIRfilter (@var{p}) ## Creates an FIR filter with polynomial @var{p} as ## coefficient vector. ## ## @end deftypefn function f = FIRfilter (p) f.polynomial = []; if (nargin == 0) p = @polynomial ([1]); elseif (nargin == 1) if (!isa (p, "polynomial")) error ("FIRfilter: expecting polynomial as input argument"); endif else print_usage (); endif f = class (f, "FIRfilter", p); endfunction