is.character(dd) && length(dd) == 0 should do it i think. Gabor
On Thu, Nov 15, 2007 at 04:54:45PM -0500, Gang Chen wrote: > I want to identify whether a variable is character(0), but get lost. > For example, if I have > > > dd<-character(0) > > the following doesn't seem to serve as a good identifier: > > > dd==character(0) > logical(0) > > So how to detect character(0)? > > Thanks, > Gang > > ______________________________________________ > 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. -- Csardi Gabor <[EMAIL PROTECTED]> MTA RMKI, ELTE TTK ______________________________________________ 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.
