Hi, The result of rowsum() in R doesn't have the dimnames I'd expect, e.g.:> rowsum(matrix(1:12, 3,4), c("Y","X","Y"))[,1] [,2] [,3] [,4] 1 2 5 8 11 2 4 10 16 22 whereas S-Plus gives the more useful result: [,1] [,2] [,3] [,4] X 2 5 8 11 Y 4 10 16 22 This is because R's rowsum() code gives the first dimnames as "ugroup", which is a factor, rather than "as.character(ugroup)". Is this a bug or a feature? I'm using R 1.3.0 on Solaris 2.6. Help says rowsum's author is Terry Therneau. Thanks! -- David Brahm (a215020 at agate.fmr.com) -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
David Brahm <a215020 at agate.fmr.com> writes:> Hi, > > The result of rowsum() in R doesn't have the dimnames I'd expect, e.g.: > > > rowsum(matrix(1:12, 3,4), c("Y","X","Y")) > [,1] [,2] [,3] [,4] > 1 2 5 8 11 > 2 4 10 16 22 > > whereas S-Plus gives the more useful result: > [,1] [,2] [,3] [,4] > X 2 5 8 11 > Y 4 10 16 22 > > This is because R's rowsum() code gives the first dimnames as "ugroup", which > is a factor, rather than "as.character(ugroup)". Is this a bug or a feature? > > I'm using R 1.3.0 on Solaris 2.6. Help says rowsum's author is Terry Therneau. > Thanks!Probably a bug. -- O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._