[R] Checking package licences including dependencies?

[Ben Bolker]

Allan Engelhardt <allane <at> cybaea.com> writes:

> 
> I only recently discovered options("available_packages_filters" = 
> list(add = TRUE, "license/FOSS")) [cf. help("available.packages", 
> package="utils") in R 2.10.0 or later] which goes nicely with my 
> options("checkPackageLicense" = TRUE) [new in R 2.11].
> 
> But now I want to purge my library of packages I would not have 
> installed had I known about this option earlier (I'm looking at you, 
> "gam"!).

 What's the problem with gam? The ACM license on akima (on which it
depends) that requires permission/licensing for
commercial use?