On 04/07/2011 04:46 PM, Ista Zahn wrote:

I don't think R-help is the appropriate place for this question.
Probably you will have more luck at http://www.theattorneysforum.com/
or some such.

I would hope, though, there are means for community members
to express their concerns in some medium of the community.

Fortes fortuna iuvat!

Best,
Tobias

On Thu, Apr 7, 2011 at 10:36 AM, Matthew Dowle<mdo...@mdowle.plus.com>  wrote:
Duncan,

Letting you know then that I just don't see how the first paragraph here :

http://www.revolutionanalytics.com/downloads/gpl-sources.php

is compatible with clause 2(b) here :

http://www.gnu.org/licenses/gpl-2.0.html

Perhaps somebody could explain why it is?

Matthew


"Duncan Murdoch"<murdoch.dun...@gmail.com>  wrote in message
news:4d9da9ff.9020...@gmail.com...
On 07/04/2011 7:47 AM, Matthew Dowle wrote:
Peter,

If the proprietary part of REvolution's product is ok, then surely
Stanislav's suggestion is too. No?

Revolution has said that they believe they follow the GPL, and they
haven't been challenged on that.   If you think that they don't, you could
let an R copyright holder know what they're doing that's a license
violation.

My opinion of Stanislav's question is that he doesn't give enough
information to answer.  If he is planning to distribute R as part of his
product, he needs to follow the GPL.  If not, I don't think any R
copyright holder has anything to complain about.

Duncan Murdoch

Matthew


"peter dalgaard"<pda...@gmail.com>    wrote in message
news:be157cf5-9b4b-45a0-a7d4-363b774f1...@gmail.com...

  On Apr 7, 2011, at 09:45 , Stanislav Bek wrote:

  Hi,

  is it possible to use some statistic computing by R in proprietary
  software?
  Our software is written in c#, and we intend to use
  http://rdotnet.codeplex.com/
  to get R work there. Especially we want to use loess function.

  You need to take legal advice to be certain, but offhand I would say
that
  this kind of circumvention of the GPL is _not_ allowed.

  It all depends on whether the end product is a "derivative work", in
which
  case, the whole must be distributed under a GPL-compatible licence.
The
  situation around GPL-incompatible plug-ins or plug-ins interfacing to
R in
  GPL -incompatible software is legally murky, but using R as a
subroutine
  library for proprietary code is clearly crossing the line, as far as I
can
  tell.

  --
  Peter Dalgaard
  Center for Statistics, Copenhagen Business School
  Solbjerg Plads 3, 2000 Frederiksberg, Denmark
  Phone: (+45)38153501
  Email: pd....@cbs.dk  Priv: pda...@gmail.com


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