On Tue, Jul 23, 2013 at 9:18 AM, Fg Nu <fgn...@yahoo.com> wrote: > > > > Here is an example where cbind fails with an error when check.names=TRUE is > set. > > data(airquality) > airQualityBind =cbind(airquality,airquality,check.names =TRUE) > > > I understand that cbind is a call to data.frame and the following works: > airQualityBind =data.frame(airquality,airquality,check.names =TRUE) > but I would like to understand why cbind throws an error. > > I asked this question on SO here: > http://stackoverflow.com/questions/17810470/cbind-error-with-check-names > and user Hong Ooi confirmed my suspicion that cbind was passing check.names = > FALSE regardless of my setting that option, even though the help file > indicates that this should be possible, > > "For the "data.frame" method of cbind these can be further arguments to > data.frame such as stringsAsFactors." > > Is there some design principle that I am missing here?
Well, the function does work as documented. See the help file section on "Data frame methods", which says "The 'cbind' data frame method is just a wrapper for 'data.frame(..., check.names = FALSE)'". Best, Ista > > > Thanks. > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel