I have a data.frame DF with a factor column "foo", it has X unique levels. When I do DT=data.table(DF) key(DT) = "foo"
DT then has X-1 unique levels, and one repeated level. I then continually get messages saying that repeated levels are no longer allowed. The level that goes missing looks like: "blahblah�0123456789" There is a special character that I don't know what it is in there I hope it shows through in the email. After setting key(DT) , there is a completely different level that is duplicated, and the level above goes missing. I'm not quite sure how to replicate this with data I can show. It seems a weird bug. Any thoughts? _______________________________________________ datatable-help mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help
