Thank you very much for pointing me to the correct part of the documentation (and apologies for that), Simon. Very much appreciated, b
On 6 June 2012 00:43, Simon Urbanek <simon.urba...@r-project.org> wrote: > > On Jun 5, 2012, at 7:37 PM, Benilton Carvalho wrote: > >> Hi, >> >> I'm working on a package and observed a behaviour that was suggested >> to be incompatible with the documentation. >> >> The code below: >> >> x <- matrix(1:4, 2) >> dimnames(x) <- list() >> >> works just fine. But checking the documentation for dimnames(), it >> states that if value is a list "its components are either 'NULL' or a >> character vector with positive length of the appropriate dimension of >> x". >> >> Should dimnames() return an error on the example above? >> > > No, from the docs: > > The replacement method for arrays/matrices coerces vector and > factor elements of ‘value’ to character, but does not dispatch > methods for ‘as.character’. It coerces zero-length elements to > ‘NULL’, and a zero-length list to ‘NULL’. > > you are using a 0-length list, so it is coerced to NULL. > > Cheers, > Simon > > > >> Thank you very much for your attention and time, >> >> benilton >> >> ______________________________________________ >> 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
