COPYRIGHT circular: Circular Statistics Copyright (C) 2013 Claudio Agostinelli, Ulric Lund 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; version 2 of the License or 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. CREDITS Some of the functions are originally written for S by Ulric Lund <ulund@calpoly.edu>. rstable function is based on C functions gsl_ran_levy and gsl_ran_levy_skew from GNU Scientifi Library copyrighted under GNU general license by James Theiler, Brian Gough and Keith Briggs. The function summary.circular is written with David Andel <andel@ifi.unizh.ch> The function windrose was originally written by Matt Pocernich <pocernic@rap.ucar.edu>