[R] hash - extract key values
Brian Smith
bsmith030465 at gmail.com
Sun Mar 29 00:45:30 CET 2015
Hi William,
That's the point - the 'keys()' doesn't seem to work..
On Sat, Mar 28, 2015 at 7:36 PM, William Dunlap <wdunlap at tibco.com> wrote:
> 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.
>
>
>
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