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>
