[Rd] cbind error with check.names
istazahn at gmail.com
Tue Jul 23 18:20:20 CEST 2013
On Tue, Jul 23, 2013 at 9:18 AM, Fg Nu <fgnu32 at yahoo.com> wrote:
> Here is an example where cbind fails with an error when check.names=TRUE is set.
> 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:
> 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)'".
> R-devel at r-project.org mailing list
More information about the R-devel