Hello, Is this expected ? > nchar( c( "", NA ) ) [1] 0 2 Should not the second one be NA ? Romain -- Romain Francois Professional R Enthusiast +33(0) 6 28 91 30 30 http://romainfrancois.blog.free.fr |- http://bit.ly/98Uf7u : Rcpp 0.8.1 |- http://bit.ly/c6YnCi : graph gallery collage `- http://bit.ly/bZ7ltC : inline 0.3.5
Hi Romain, Did you read the help for nchar? Value: For ?nchar?, an integer vector giving the sizes of each element, currently always ?2? for missing values (for ?NA?). It may be unexpected behavior, but it's *well-documented* unexpected behavior. Sarah On Fri, Jun 18, 2010 at 4:52 PM, Romain Francois <romain at r-enthusiasts.com> wrote:> Hello, > > Is this expected ? > >> nchar( c( "", NA ) ) > [1] 0 2 > > Should not the second one be NA ? > > Romain >-- Sarah Goslee http://www.functionaldiversity.org
The help page says: "For ‘nchar’, an integer vector giving the sizes of each element, currently always ‘2’ for missing values (for ‘NA’)." On Fri, Jun 18, 2010 at 5:52 PM, Romain Francois <romain@r-enthusiasts.com>wrote:> Hello, > > Is this expected ? > > > nchar( c( "", NA ) ) > [1] 0 2 > > Should not the second one be NA ? > > Romain > > -- > Romain Francois > Professional R Enthusiast > +33(0) 6 28 91 30 30 > http://romainfrancois.blog.free.fr > |- http://bit.ly/98Uf7u : Rcpp 0.8.1 > |- http://bit.ly/c6YnCi : graph gallery collage > `- http://bit.ly/bZ7ltC : inline 0.3.5 > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel >-- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O [[alternative HTML version deleted]]