Thanks Jim ! also found a second way to do by using as.character() eg :
as.character(yyy).
On Fri, Jun 12, 2015 at 3:06 AM, Jim Lemon <drjimlemon at gmail.com>
wrote:
> Hi Bogdan,
> I seem to be able to do it like this:
>
> xxx <-array(0, dim=4)
> dimnames(xxx) = list(list_triplet_wells)
> xxx
> A1:A2:A3 A4:A5:A6 A7:A8:A9 A10:A11:A12
> 0 0 0 0
> yyy<-factor(c("A1:A2:A3", "A4:A5:A6 ",
"A7:A8:A9", "A10:A11:A12"))
> yyy
> [1] A1:A2:A3 A4:A5:A6 A7:A8:A9 A10:A11:A12
> Levels: A1:A2:A3 A10:A11:A12 A4:A5:A6 A7:A8:A9
> xxx[yyy[1]]
> A1:A2:A3
> 0
>
> Jim
>
>
> On Fri, Jun 12, 2015 at 2:08 PM, David Winsemius <dwinsemius at
comcast.net>
> wrote:
> > Cross-posting to SO and Rhelp is deprecated.
> >
> > On Jun 11, 2015, at 8:40 PM, Bogdan Tanasa wrote:
> >
> >> Dear all,
> >>
> >> please could you please with a simple question : I do have an
array of
> 32
> >> elements, where each element is indexed by a name : eg :
> >>
> >> list_triplet_wells <-c("A1:A2:A3", "A4:A5:A6
", "A7:A8:A9",
> "A10:A11:A12
> >> ")
> >> xxx <-array(0, dim=4)
> >> dimnames(xxx) = list(list_triplet_wells)
> >>
> >>> From another script, I have an output like :
> >>
> >>> yyy
> >> [1] A1:A2:A3 B4:B5:B6
> >> 31 Levels: B4:B5:B6 A1:A2:A3 ... F4:F5:F6
> >>
> >> so yyy seems to be a factor type. I would need to call the
elements of
> xxx
> >> array based on the elements of yyy; eg xxx[yyy].
> >>
> >> How can I do this in order to circumvent the factor type of yyy ?
> Thanks a
> >> lot,
> >>
> >> bogdan
> >>
> >> [[alternative HTML version deleted]]
> >>
> >
> > As is posting in HTML.
> >
> >> 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.
> >
> > David Winsemius
> > Alameda, CA, USA
> >
> > ______________________________________________
> > 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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