Ah. Then I think that was deliberate at the time. I sometimes mislabel column names and want R to warn me rather than doing silent cross-ref. Other times I just think in terms of column order and am not too concerned with the names. I don't mind changing it to do cross ref for consistency but would like to keep the warning. Views?
On Sun, 2011-10-23 at 14:35 -0400, Steve Lianoglou wrote: > I think he means that running data.frame.rbind on these: > > R> d1 <- data.frame(a=1:10, b=11:20) > R> d2 <- data.frame(b=101:120, a=21:30) > R> rbind(d1, d2) > > Will "cross ref" the "a" and "b" columns and stack them correctly on > top of each other. > > Doing the same with two data.table will bind the two together, but > won't do the cross-ref. It just gives you a warning that the names > didn't match, but rbind's the first to the first, and the second to > the second (columns) anyway. > > -steve > > On Sun, Oct 23, 2011 at 2:19 PM, Matthew Dowle <[email protected]> wrote: > > Hi. Not sure what you mean, example needed please. Is that with v1.7.1 now > > on CRAN? There has been some to and fro on chind/rbind in last few > > versions. > > > >> Hi Matthew, > >> > >> Not sure if this is planned or inadvertent, but rbind matches up named > >> columns with data.frames but doesn't with data.table (data.table does give > >> the friendly warning). > >> > >> Thanks as always for your excellent package, > >> > >> Damian > >> > >> > >> _______________________________________________ > >> datatable-help mailing list > >> [email protected] > >> https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help > > > > > > _______________________________________________ > > datatable-help mailing list > > [email protected] > > https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help > > > > > _______________________________________________ datatable-help mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help
