All, We established that data.table inheritance didn't work with package rms (bug #1023) thanks to David W for reporting problems. It turned out to be because rms didn't have a namespace. Frank very kindly included a namespace in the latest version of rms v3.1-0 and this fixes the problem - thanks Frank!
I've added feature request #1074 'Make inheritance work for namespaceless packages'. I have some ideas how to do this but it will be tricky. I don't know how many other namespaceless packages there are, how to find out, or the demand from users of data.table to use data.table inheritance with them. Worst case you just have to pass as.data.frame(DT) to the namespaceless package, but that will copy and slow things down. Please let us know if you come across any more namespaceless packages you'd like to use with data.table. Thanks, Matthew _______________________________________________ datatable-help mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help
