Bug#752876: Comments regarding r-cran-spdep_0.5-92-1_amd64.changes

[Andreas Tille]

Hi Roger,

just to leave your quick and helpful reply not unanswered:  I was hoping
for faster processing to be able to answer your question whether further
changes are needed.  For the moment I just say thanks for your kind
cooperation and I might (or hopefully might not) come back to you in
case of further issues.

Kind regards

       Andreas.

On Sat, Apr 09, 2016 at 04:29:50PM +0200, Andreas Tille wrote:
> Hi Thorsten,
> 
> would it be acceptable if I add this text to d/copyright?
> 
> Kind regards
> 
>       Andreas.
> 
> 
> On Mon, Apr 04, 2016 at 06:52:24PM +0200, Roger Bivand wrote:
> > Hi Andreas,
> > 
> > I have added:
> > 
> > /*
> > This code is described in "Computational Geometry in C" (Second Edition),
> > Chapter 8.  It is not written to be comprehensible without the
> > explanation in that book.
> > 
> > Prints out one arm configuration to reach given target.
> > Assumes number of links >= 3.
> > Input:
> >    nlinks           Number of links
> >    L1 L2 ... Ln     Link lengths
> >    x0 y0            target0
> >    x1 x2            target1
> >    ...
> > 
> > Written by Joseph O'Rourke.
> > Last modified: December 1997
> > Questions to orourke at cs.smith.edu.
> > --------------------------------------------------------------------
> > This code is Copyright 1998 by Joseph O'Rourke.  It may be freely
> > redistributed in its entirety provided that this copyright notice is
> > not removed.
> > --------------------------------------------------------------------
> > */
> > 
> > to spdep/src/soigraph.c (committed to R-forge, will be released when the
> > next release occurs). This is the comment at the top of arm.c from:
> > 
> > http://cs.smith.edu/~orourke/CGCode/SecondEdition/Ccode2.tar.gz
> > 
> > which is the author's code distribution site, and is more relevant than the
> > printed text of the book. We've used the same approach in sp/src/pip.c for
> > over ten years without attracting Debian's ire.
> > 
> > Nicholas and I understood in 2001 that ... may be freely redistributed ...
> > could reasonably be taken as permission to include and redistribute these
> > small functions.
> > 
> > Do you want me to revisit the separate packaging of data sets?
> > 
> > Best wishes,
> > 
> > Roger
> > 
> > On Mon, 4 Apr 2016, Andreas Tille wrote:
> > 
> > >Hi Roger,
> > >
> > >I hope you remember the discussion we had two years ago when I tried to
> > >package spdep for Debian as a dependency to test some R epipdemiology
> > >tools.  I somehow gave up since the packages can be run with out spdep.
> > >However, we have now some bioinformatics tools that have a strong
> > >dependency and so we need to dive into this again.
> > >
> > >As you can read below the Debian ftpmaster has reviewed the source code
> > >of spdep and found a weak part in the licensing.  If you ask me this
> > >issue is also relevant for distributing spdep code on CRAN but nobody
> > >has stumbled upon this before.  It would be great if you could clarify
> > >the license of these pieces of code or replace it by some alternative
> > >free code.
> > >
> > >Kind regards and thanks for your support
> > >
> > >     Andreas.
> > >
> > >On Sun, Apr 03, 2016 at 04:49:37PM +0000, Thorsten Alteholz wrote:
> > >>Hi Andreas,
> > >>
> > >>the issues about src/soigraph.c are not really solved.
> > >>
> > >>According to the file:
> > >>* The subroutines TwoCirclesxx and SubVec are adapted for R and Double
> > >>* precision coordinates by Nicholas Lewin-Koh, from Computational
> > >>* Geometry in C, Joseph O'Rourke, Cambridge University Press
> > >>* (1998), specifically from arm/arm.c. Copyright for those subroutines
> > >>*  remains his.
> > >>
> > >>As you can see, for example on Amazon, this book contains a paragraph:
> > >>
> > >>This book is in copyright. (...) no reproduction of any part may take
> > >>place without the written permission of Cambridge University Press.
> > >>
> > >>From my point of view this does not look like that "This code may be
> > >>freely redistributed" ...
> > >>
> > >>  Thorsten
> > >>
> > >>
> > >>
> > >>
> > >>--
> > >>debian-science-maintainers mailing list
> > >>debian-science-maintainers at lists.alioth.debian.org
> > >>http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/debian-science-maintainers
> > >>
> > >
> > >
> > 
> > -- 
> > Roger Bivand
> > Department of Economics, Norwegian School of Economics,
> > Helleveien 30, N-5045 Bergen, Norway.
> > voice: +47 55 95 93 55; fax +47 55 95 91 00
> > e-mail: Roger.Bivand at nhh.no
> > http://orcid.org/0000-0003-2392-6140
> > https://scholar.google.no/citations?user=AWeghB0AAAAJ&hl=en
> > http://depsy.org/person/434412
> > 
> 
> -- 
> http://fam-tille.de
> 
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