tlumley at u.washington.edu
2008-Aug-13 15:25 UTC
[Rd] Column name disappears when indexing a single column (PR#12534)
1. This is not a bug (as you seem to realize), so it should not be sent to r-bugs. 2. You seem to want the drop=FALSE argument to [], as in FAQ 7.5 -thomas On Wed, 13 Aug 2008 cherrera at cs.nmsu.edu wrote:> Good Day, > I can understand that after indexing a single column in a matrix, R will return a vector instead of the single column. However, during the conversion to a vector, the column name is lost. > I was wondering if it would be better to have R return a single column matrix (retaining the column name), instead of automatically converting to a vector. Users could use as.vector() to convert afterwards. > > Thanks, > CMHJ > <<insert bug report here>> > > > > --please do not edit the information below-- > > Version: > platform = x86_64-unknown-linux-gnu > arch = x86_64 > os = linux-gnu > system = x86_64, linux-gnu > status > major = 2 > minor = 7.1 > year = 2008 > month = 06 > day = 23 > svn rev = 45970 > language = R > version.string = R version 2.7.1 (2008-06-23) > > Locale: > LC_CTYPE=en_US.UTF-8;LC_NUMERIC=C;LC_TIME=en_US.UTF-8;LC_COLLATE=en_US.UTF-8;LC_MONETARY=C;LC_MESSAGES=en_US.UTF-8;LC_PAPER=en_US.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US.UTF-8;LC_IDENTIFICATION=C > > Search Path: > .GlobalEnv, package:stats, package:graphics, package:grDevices, package:utils, package:datasets, package:methods, Autoloads, package:base > > ______________________________________________ > R-devel at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel >Thomas Lumley Assoc. Professor, Biostatistics tlumley at u.washington.edu University of Washington, Seattle