Works for me : > library(hash) hash-2.2.6 provided by Decision Patterns
> hx <- hash( c('a','b','c'), 1:3 ) > class(hx) [1] "hash" attr(,"package") [1] "hash" > hx$a [1] 1 > keys(hx) [1] "a" "b" "c" Maybe restart your session? Clear your workspace? Upgrade? B. On Mar 27, 2015, at 7:39 PM, Brian Smith <bsmith030...@gmail.com> wrote: > Hi, > > I was trying to use hash, but can't seem to get the keys from the hash. > According to the hash documentation ('hash' package pdf, the following > should work: > >> hx <- hash( c('a','b','c'), 1:3 ) >> class(hx) > [1] "hash" > attr(,"package") > [1] "hash" >> hx$a > [1] 1 >> keys(hx) > Error in (function (classes, fdef, mtable) : > unable to find an inherited method for function ‘keys’ for signature > ‘"hash"’ > > How can I get the keys for my hash? > > thanks! > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.