[Octave-cvsupdate] octave-forge/main/signal/inst morlet.m, NONE, 1.1

[sis-sou <si...@us...>]

Update of /cvsroot/octave/octave-forge/main/signal/inst
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv6908

Added Files:
	morlet.m 
Log Message:
Initial Commit into CVS.Initial Commit into CVS.


--- NEW FILE: morlet.m ---
## Copyright (C) 2007   Sylvain Pelissier   <syl...@gm...>
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

## -*- texinfo -*-
## @deftypefn {Function File} {[@var{psi,x}] =} morlet(@var{lb,ub,n})
##	Compute the Morlet wavelet.
## @end deftypefn

function [psi,x] = morlet(lb,ub,n)
	if (nargin < 3); usage('[psi,x] = morlet(lb,ub,n)'); end
	
	if (n <= 0)
		error("n must be strictly positive");
	endif
	x = linspace(lb,ub,n);
	psi = cos(5.*x) .* exp(-x.^2/2) ;
endfunction