A great example of why you need to read and follow the posting guide -- this is a plain text list: NO HTML.
Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Fri, Mar 3, 2017 at 9:59 AM, exponential <exponent...@o2.pl> wrote: > Hi! I've tried on SO, but without success. Maybe you will be able to > help. I have the following array (I use 3-dimensional in this example for > simplicity, but it can be 3+ dims - 10,11 or more): a <- c('a1', > 'a2', 'a3') b <- c('bb', 'bbb') c <- > c('C', 'CC', 'CCC') dimNa <- list('a' = > a, 'b' = b, 'c' = c) outputArray <- array(NA, > unname(sapply(dimNa, function(x) length(x), simplify = T)), > unname(dimNa)) I can subset it using name from one dimension manually, > like: > outputArray[,'bb',] C CC CCC a1 NA NA NA a2 NA > NA NA a3 NA NA NA or > outputArray[,,'CCC'] bb bbb a1 > NA NA a2 NA NA a3 NA NA I would like to write a function which subsets > particular named element from one dimension (I mean I don't expect one > dimension as a result by slicing using one named element, if tha! t makes sense). Something like myfunc <- function(inputArray, namedElement) thus I can call it (using above example): myfunc(outputArray, 'bb') or myfunc(outputArray, 'CCC') to get identical as above results. I know how to deal with finding to which dimension "namedElement" belongs (in my case all names are unique). The question is how to subset it from the array? One idea is to construct what is inside [ ] (in example: ,'bb', or ,,'CCC'). I've tried something like this: inputDims <- ",,'CCC'" outputArray[parse(text=inputDi But this doesn't work. Maybe different approach should be used... Any ideas are welcome:)! Cheers! > > [[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. ______________________________________________ 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.
