freqspace

(/tools/hpmatlab/toolbox/signal/freqspace.m)

Function Synopsis

[f1,f2] = freqspace(n,flag)

Help text

FREQSPACE Frequency spacing for 2-D frequency responses.
	FREQSPACE returns the implied frequency range for equally spaced
	frequency responses.  FREQSPACE is useful when creating desired
	frequency responses for FSAMP2, FWIND1, and FWIND2 as well as
	for various 1-D applications.
	
	[F1,F2] = FREQSPACE(N) returns the 2-D frequency range vectors
	F1 and F2 for an N-by-N matrix.
	[F1,F2] = FREQSPACE([M N]) returns the 2-D frequency range 
	vectors for an M-by-N matrix.

	For 2-D vectors and n odd,  F = (-1+1/n:2/n:1-1/n).
	For 2-D vectors and n even, F = (-1    :2/n:1-2/n).

	[F1,F2] = FREQSPACE(...,'meshgrid') is equivalent to
	    [F1,F2] = freqspace(...); [F1,F2] = meshgrid(F1,F2);

	F = FREQSPACE(N) returns the 1-D frequency vector F assuming N
	equally spaced points around the unit circle.  For 1-D vectors, 
	F = (0:2/N:1).  F = FREQSPACE(N,'whole') returns all N equally
	spaced points. In this case, F = (0:2/N:2*(N-1)/N).

	See also FSAMP2, FWIND1, FWIND2.

Cross-Reference Information

else           /tools/hpmatlab/toolbox/matlab/lang/else.m
end            /tools/hpmatlab/toolbox/matlab/lang/end.m
error          /tools/hpmatlab/toolbox/matlab/lang/error.m
floor          /tools/hpmatlab/toolbox/matlab/elfun/floor.m
if             /tools/hpmatlab/toolbox/matlab/lang/if.m
length         /tools/hpmatlab/toolbox/matlab/general/length.m
meshgrid       /tools/hpmatlab/toolbox/matlab/elmat/meshgrid.m
nargin         /tools/hpmatlab/toolbox/matlab/elmat/nargin.m
nargout        /tools/hpmatlab/toolbox/matlab/elmat/nargout.m