On 13-02-18 4:33 PM, Hadley Wickham wrote:
Hi all,
I would like to include a function that I have made by modifying an
existing R function (bw.SJ and corresponding code in bandwidths.c).
The header of bandwidths.c states:
/*
* R : A Computer Language for Statistical Data Analysis
* bandwidth.c by W. N. Venables and B. D. Ripley Copyright (C) 1994-2001
* Copyright (C) 2012 The R Core Team
*
* 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.
...
*/
so it was originally written by Bill Venables and Brian Ripley, who in
2012 passed the copyrights to the R core team.
I would not assume that: I would assume that the R Core Team licensed
the source from Venables and Ripley (maybe under the GPL, but not
necessarily), and both them and R Core Team now hold copyright, and are
willing to license it to you under the GPL.
What do I need to do to ensure meet my obligations under the GPL and
I won't give legal advice.
to adequately acknowledge the work of the original authors.
Currently:
* my package has a compatible license (also GPL >= 2), and
* I have acknowledged the authors in the documentation for my function
* In the code, I have retained the copyrights of the original authors
Do I also need to include Brian, Bill or the R core team in the
authors@R field in my DESCRIPTION (as contributors)?
That seems reasonable.
Duncan Murdoch
______________________________________________
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
