Re: [R] How to view un-sampled data from a randomly sampled dataset

2013-10-23 Thread peter dalgaard
-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On >> Behalf >> Of peter dalgaard >> Sent: Wednesday, October 23, 2013 12:37 PM >> To: erinu >> Cc: r-help@r-project.org >> Subject: Re: [R] How to view un-sampled data from a randomly sampled datas

Re: [R] How to view un-sampled data from a randomly sampled dataset

2013-10-23 Thread erinu
hi bert- all of the values are unique, so the random sample of everything was also a random sample of all unique numbers. Erin -- View this message in context: http://r.789695.n4.nabble.com/How-to-view-un-sampled-data-from-a-randomly-sampled-dataset-tp4678887p4678908.html Sent from the R hel

Re: [R] How to view un-sampled data from a randomly sampled dataset

2013-10-23 Thread William Dunlap
t; 0) x else x[-s,] Bill Dunlap Spotfire, TIBCO Software wdunlap tibco.com > -Original Message- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On > Behalf > Of peter dalgaard > Sent: Wednesday, October 23, 2013 12:37 PM > To: erinu > Cc: r

Re: [R] How to view un-sampled data from a randomly sampled dataset

2013-10-23 Thread Bert Gunter
... which raises an interesting point: What if some of the values are replicated? Does the OP want to have a random sample of everything or of the unique values? Cheers, Bert On Wed, Oct 23, 2013 at 12:39 PM, Nordlund, Dan (DSHS/RDA) wrote: >> -Original Message- >> From: r-help-boun...@r

Re: [R] How to view un-sampled data from a randomly sampled dataset

2013-10-23 Thread erinu
Thanks guys! Easy, quick fix! -- View this message in context: http://r.789695.n4.nabble.com/How-to-view-un-sampled-data-from-a-randomly-sampled-dataset-tp4678887p4678905.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-proj

Re: [R] How to view un-sampled data from a randomly sampled dataset

2013-10-23 Thread Nordlund, Dan (DSHS/RDA)
> -Original Message- > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > project.org] On Behalf Of erinu > Sent: Wednesday, October 23, 2013 11:14 AM > To: r-help@r-project.org > Subject: [R] How to view un-sampled data from a randomly sampled > dataset > > Hi there- > > I ha

Re: [R] How to view un-sampled data from a randomly sampled dataset

2013-10-23 Thread peter dalgaard
On Oct 23, 2013, at 20:13 , erinu wrote: > Hi there- > > I have a 150 row dataset (data). I create "y" a randomly sampled (without > replacement) set number of observations (40): > > y<-data[sample(1:nrow(data),40,replace=FALSE),] > > I would like to make a new variable "x" that contains the l

Re: [R] How to view un-sampled data from a randomly sampled dataset

2013-10-23 Thread arun
HI, You may try: set.seed(432)  dat1 <- data.frame(Col1=1:150,Col2=rnorm(150))  y <- dat1[sample(1:nrow(dat1),40,replace=FALSE),] x <- dat1[-as.numeric(row.names(y)),]  dim(x) #[1] 110   2 intersect(row.names(x),row.names(y)) #character(0) #or  x1 <- dat1[!row.names(dat1) %in% row.names(y),]  iden