Exactly. Used to work for me, but not anymore. I tried restarting session, installing the most recent package of 'hash' etc.
Here is my sessionInfo(): > sessionInfo() R version 3.1.2 (2014-10-31) Platform: x86_64-apple-darwin10.8.0 (64-bit) locale: [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8 attached base packages: [1] grid parallel stats4 stats graphics grDevices utils datasets methods base other attached packages: [1] mapdata_2.2-3 maps_2.3-9 org.Hs.eg.db_3.0.0 multicore_0.1-7 nlme_3.1-120 Rgraphviz_2.10.0 [7] biomaRt_2.22.0 topGO_2.18.0 SparseM_1.6 GO.db_3.0.0 graph_1.44.1 mouse4302.db_3.0.0 [13] org.Mm.eg.db_3.0.0 RSQLite_1.0.0 DBI_0.3.1 AnnotationDbi_1.28.1 GenomeInfoDb_1.2.4 IRanges_2.0.1 [19] S4Vectors_0.4.0 Biobase_2.26.0 BiocGenerics_0.12.1 XML_3.98-1.1 gap_1.1-12 som_0.3-5 [25] pvclust_1.3-2 foreign_0.8-63 hash_3.0.1 loaded via a namespace (and not attached): [1] bitops_1.0-6 lattice_0.20-29 RCurl_1.95-4.5 tools_3.1.2 On Fri, Mar 27, 2015 at 9:54 PM, Boris Steipe <boris.ste...@utoronto.ca> wrote: > 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. > > [[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.