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]]
David Winsemius
2015-Jun-12 04:08 UTC
[R] accessing the ellements in an array and factors.
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
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.