Re: [Rd] Licensing concerns in porting S-Plus code to R libraries

From: Louis Bajuk-Yorgan <lbajuk_at_tibco.com>
Date: Thu, 18 Oct 2012 02:47:54 +0000

Hi Chris

Thanks for asking about this. In general, 3rd parties aren't allowed to modify Insightful (now TIBCO) code and then re-release it under a different license, since we own the copyright to the code. However, we strive to be strong supporters of the R community, and to make contributions where we can, so I'd be happy to discuss potentially giving you permission to do so. I'd have to consult with our internal legal team on the details.

Please contact me directly at lbajuk_at_tibco.com so we can discuss.

Regards
Lou



Lou Bajuk-Yorgan
Sr. Director, Product Management
Spotfire, TIBCO Software
lbajuk_at_tibco.com
Twitter: @LouBajuk

> -----Original Message-----
> From: r-devel-bounces@r-project.org
> [mailto:r-devel-bounces_at_r-project.org] On Behalf Of Chris Green
> Sent: Monday, October 15, 2012 5:38 PM
> To: r-devel_at_r-project.org
> Subject: [Rd] Licensing concerns in porting S-Plus code to R libraries
>
> I used S-Plus for many years, and developed lots of code for my research.
> When I switched to R a few years ago, I ported most of my S-Plus code
> over to R for my own use. Now that some of this code is quite
> polished, I would like to make it available as an R package on CRAN.
>
> Some of my S-Plus code, however, was based on Insightful S-Plus
> functions; for instance, I took a Trellis function, and modified to
> suit my needs. In some cases the modifications are minor (e.g., adding
> extra functionality, changing colors), while in other cases I've made
> substantial changes (e.g., a new function that just uses the techniques of the internal function).
> Furthermore, in porting the code to R, I of course had to make further
> changes (e.g., Trellis functions for lattice/grid functions, new C
> code to replace internal S-Plus routines to which I did not have the source code).
>
> I wondering if anyone can provide some guidance here as to what I can
> release without running afoul of any user agreement that may have come
> with S-Plus long ago. I'm assuming other package developers,
> especially those that were S-Plus users long ago, have encountered this issue and can advise me on what to do.
>
> Many thanks,
>
> Chris Green
>
> [[alternative HTML version deleted]]
>
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