Is there a multidimensional integrate-function?

[Bob_Carpenter]

@spinkney

for Stan-math to remain BSD licensed, it cannot use that [GPL] license.

Right. We’re not going to include any copylefted code in Stan. It would be nice if we had an easy user plug-in mechanism so you could easily add it yourself, but we’re not there yet.

@Franzi

It sounds as if it was still possible to add a GPL compoment and publish the function unter BSD.

It is absolutely not legal to relicense GPL code as BSD. That’s the whole point of GPL—it has copyleft and can’t be loosened.

@Franzi

@Bob_Carpenter: Could you tell me more about the compatability of licenses in Stan?

Stan’s license is BSD-3. That’s compatible with GPL meaning you can release a GPL package that includes GPL and BSD-3 code. But the copyleft drags everything down (see the link the wikipedia article above).

@Stephen_Martin

This isn’t a ‘skirting around’ of the GPL2, it’s actually how it’s written.

Exactly. Same with GPL3. You can even set up your extension on a server and sell the service. The AGPL is even more restrictive and closes the server gap so you can’t even do that.