On Oct 8, 2007, at 4:58 PM, Peter Dalgaard wrote: > data-ploner.com wrote: >> In R prior to 2.6.0 with matrizes as well as with data.frames it is >> possible to do: >> >> a[2, c(TRUE, FALSE)] >> >> In R 2.6.0 the mixed indexing works only for matrizes. Is this the >> intention, a bug, or did I get something wrong? >> Best regards >> >> Meinhard >> >> > It looks unintentional, but it is not due to "mixed indexing": > >> a[TRUE,c(TRUE,FALSE)] > Error in .subset2(xx, j) : attempt to select less than one element >> a[2,c(TRUE,TRUE)] > a b > 2 2 5 > > As far as I can tell, It happens only when drop=TRUE and exactly one > column is selected using a logical index.
Thank you. Maybe it is better letting [] work as in previous R ... ? Meinhard Ploner > > -- > O__ ---- Peter Dalgaard Øster Farimagsgade 5, Entr.B > c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K > (*) \(*) -- University of Copenhagen Denmark Ph: (+45) > 35327918 > ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) > 35327907 > > > Meinhard Ploner Althingstrasse 15 39031 Bruneck P.IVA 0234 058 0212 Tel. +39 340 8937861 [EMAIL PROTECTED] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
