Crime? (Macavity, Macavity, ..., and when you reach the scene of crime Macavity's not there...)
I suspect your data objects are like Macavity, they're not there. I found this in the R Internals 1.17. Lazy-load databases are loaded into the exports for a package, but not into the namespace environment itself. Thus they are visible when the package is attached, and also via the :: operator. This was a deliberate design decision... The manual is not explicit about the converse, but implies (I think) that the converse is true. (i.e. Non-lazyloaded datasets are not supposed to available via this mechanism). I didn't check your examples. Are your examples lazyloaded? And are they any different from other similar packages/datasets? > A different but related issue is that "plm::Crime" says "Error: > 'Crime' is not an exported object from 'namespace:plm'", even though > "library(plm); data(Crime); Crime" works. I would naively think a user > should be able to compare "Crime" objects documented in different > packages using the "::" and ":::" operators, even if a package > maintainer chooses not to "export" data objects. > What do you think? ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel