[R] hash - extract key values
William Dunlap
wdunlap at tibco.com
Sun Mar 29 00:36:37 CET 2015
Try using the plural 'keys' instead of 'key' (as help(hash) says):
yourhash <- hash(keys=letters, values=1:26)
Then there will be 26 items in the hash table and keys(yourhash)
will return the 26 lowercase letters. Is that what you want?
Bill Dunlap
TIBCO Software
wdunlap tibco.com
On Sat, Mar 28, 2015 at 2:56 PM, Brian Smith <bsmith030465 at gmail.com> wrote:
> I deleted the 'hash' directory and re-installed (several times!) it, but it
> is still wierd......
>
>
> > 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] stats graphics grDevices utils datasets methods base
>
> loaded via a namespace (and not attached):
> [1] tools_3.1.2
> > library(hash)
> hash-3.0.1 provided by Decision Patterns
>
> > myhash <- hash(key=letters,values=1:26)
> > myhash
> <hash> containing 2 key-value pair(s).
> key : a b c d e f g h i j k l m n o p q r s t u v w x y z
> values : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
> 22 23 24 25 26
> > keys(myhash)
> [1] "key" "values"
> > myhash$key
> [1] "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p" "q"
> "r" "s" "t" "u" "v" "w" "x" "y" "z"
> > myhash$values
> [1] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
> 24 25 26
> > 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] stats graphics grDevices utils datasets methods base
>
> other attached packages:
> [1] hash_3.0.1
>
> loaded via a namespace (and not attached):
> [1] tools_3.1.2
> >
>
> On Sat, Mar 28, 2015 at 5:02 AM, Uwe Ligges <
> ligges at statistik.tu-dortmund.de
> > wrote:
>
> > Try to reinstall hash. Sounds like a broken installation.
> >
> > Best,
> > Uwe Ligges
> >
> >
> >
> > On 28.03.2015 07:03, Brian Smith wrote:
> >
> >> 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.steipe at 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$a
> >>>>
> >>> [1] 1
> >>>
> >>>> keys(hx)
> >>>>
> >>> [1] "a" "b" "c"
> >>>
> >>>
> >>> Maybe restart your session? Clear your workspace? Upgrade?
> >>>
> >>> B.
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> On Mar 27, 2015, at 7:39 PM, Brian Smith <bsmith030465 at gmail.com>
> wrote:
> >>>
> >>> Hi,
> >>>>
> >>>> I was trying to use hash, but can't seem to get the keys from the
> hash.
> >>>> According to the hash documentation ('hash' package pdf, the following
> >>>> should work:
> >>>>
> >>>> hx <- hash( c('a','b','c'), 1:3 )
> >>>>> class(hx)
> >>>>>
> >>>> [1] "hash"
> >>>> attr(,"package")
> >>>> [1] "hash"
> >>>>
> >>>>> hx$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 at 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 at 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 at 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]]
More information about the R-help
mailing list