Re: [R] bigest part of vector

comment presumes insight into the psychology of "surprise" that I don't have). -- Bert -Original Message- From: macra...@gmail.com [mailto:macra...@gmail.com] On Behalf Of Stavros Macrakis Sent: Tuesday, February 24, 2009 2:12 PM To: Peterko Cc: Bert Gunter; r-help@r-project.or

Re: [R] bigest part of vector

On Tue, Feb 24, 2009 at 3:01 PM, Bert Gunter wrote: > Nothing wrong with prior suggestions, but strictly speaking, (fully) sorting > the vector is unnecessary. > > y[y > quantile(y, 1- p/length(y))] > > will do it without the (complete) sort. (But sorting is so efficient anyway, > I don't think yo

Re: [R] bigest part of vector

enentech -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Peterko Sent: Tuesday, February 24, 2009 11:55 AM To: r-help@r-project.org Subject: Re: [R] bigest part of vector Thanks for all Peterko wrote: > > Hi, may be simle question

Re: [R] bigest part of vector

Thanks for all Peterko wrote: > > Hi, may be simle question, but a do not find it anywhere. > Is there same function like max() ,but giving more results. > max() give 1number-maximum > I need funcion what give p bigest number. > many thanks > -- View this message in context: http://www.nabb

Re: [R] bigest part of vector

There's probably something built in to R but you can change the values of the percentiles (p) below to get the value that corresponds to it. rounding might be problematic also. temp <- c(1,4,8,3,5) p <- 0.8 temp[order(temp)][round(length(temp)*p)] On Tue, Feb 24, 2009 at 2:36 PM, Peterko

Re: [R] bigest part of vector

Dear Peter, Perhaps: set.seed(1) # For reproducibility p<-2 # Two biggest values of x x<-rnorm(10) tail(sort(x),p) [1] 0.7383247 1.5952808 In a function mode, foo<-function(x,p=2) tail(sort(x),p) foo(x,p=3) [1] 0.5757814 0.7383247 1.5952808 HTH, Jorge On Tue, Feb 24, 2009 at 2:36

Re: [R] bigest part of vector

On Tue, 24 Feb 2009 11:36:06 -0800 (PST) (SO, 55 Chs 3175 YOLD) Peterko wrote: > > Hi, may be simle question, but a do not find it anywhere. > Is there same function like max() ,but giving more results. > max() give 1number-maximum > I need funcion what give p bigest number. > many thanks How

[R] bigest part of vector

Hi, may be simle question, but a do not find it anywhere. Is there same function like max() ,but giving more results. max() give 1number-maximum I need funcion what give p bigest number. many thanks -- View this message in context: http://www.nabble.com/bigest-part-of-vector-tp22188901p22188901