Thanks everyone for the solutions !! Tanvir Ahamed Göteborg, Sweden | mashra...@yahoo.com
----- Original Message ----- From: Keith Jewell <keith.jew...@campdenbri.co.uk> To: r-h...@stat.math.ethz.ch Sent: Wednesday, 22 June 2016, 11:54 Subject: Re: [R] [FORGED] Re: Generate list if sequence form two vector element or as a one-liner mapply(pmin(a, b), pmax(a,b), FUN=seq, SIMPLIFY=FALSE) On 22/06/2016 10:23, peter dalgaard wrote: > There's also > > mapply(a, b, FUN=seq, SIMPLIFY=FALSE) > > (turn off simplication so that you don't unexpectedly get a matrix whenever > all elements of results have same length. This also affects apply()-based > solutions.) > > ...except that according to original spec, one should ensure a < b. So > > myseq <- function(a,b) if(a<b) a:b else b:a > mapply(a, b, FUN=myseq, SIMPLIFY=FALSE) > > -pd > >> On 22 Jun 2016, at 10:42 , Jim Lemon <drjimle...@gmail.com> wrote: >> >> Now why didn't I think of that? >> >> apply(matrix(c(a,b),ncol=2),1,function(x)x[1]:x[2]) >> >> Jim >> >> On Wed, Jun 22, 2016 at 6:14 PM, Rolf Turner <r.tur...@auckland.ac.nz> wrote: >>> On 22/06/16 20:00, Jim Lemon wrote: >>>> >>>> Hi Tanvir, >>>> Not at all elegant, but: >>>> >>>> make.seq<-function(x) return(seq(x[1],x[2])) >>>> apply(matrix(c(a,b),ncol=2),1,make.seq) >>> >>> >>> Not sure that this is more "elegant" but it's a one-liner: >>> >>> lapply(1:length(a),function(i,a,b){a[i]:b[i]},a=a,b=b) >>> >>> cheers, >>> >>> Rolf >>> >>> >>>> On Wed, Jun 22, 2016 at 5:32 PM, Mohammad Tanvir Ahamed via R-help >>>> <r-help@r-project.org> wrote: >>>>> >>>>> Hi, >>>>> I want to do the follow thing >>>>> >>>>> Input : >>>>> a <- c(1,3,6,9) >>>>> >>>>> >>>>> b<-c(10,7,20,2) >>>>> >>>>> >>>>> Expected outcome : >>>>> >>>>> d<-list(1:10,3:7,6:20,2:9) ______________________________________________ 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.