Re: [R] group data based on row value

Of Jeff Newmiller Sent: Wednesday, May 22, 2013 5:27 PM To: Ye Lin; R help Subject: Re: [R] group data based on row value dat$group - cut( dat$Var, breaks=c(-Inf,0.1, 0.6,Inf)) levels(dat$group) - LETTERS[1:3] --- Jeff Newmiller

[R] group data based on row value

hey, I want to divide my data into three groups based on the value in one column with group name. dat: Var 0 0.2 0.5 1 4 6 I tried: dat - cbind(dat, group=cut(dat$Var, breaks=c(0.1,0.6))) But it doesnt work, I want to group those 0.1 as group A, 0.1-0.6 as group B, 0.6 as group C Thanks for

Re: [R] group data based on row value

Hi, Try: dat- read.table(text= Var 0 0.2 0.5 1 4 6 ,sep=,header=TRUE) res1-within(dat,group-factor(findInterval(Var,c(-Inf,0.1,0.6),rightmost.closed=TRUE),labels=LETTERS[1:3]))  res1  # Var group #1 0.0 A #2 0.2 B #3 0.5 B #4 1.0 C #5 4.0 C #6 6.0 C #or

Re: [R] group data based on row value

dat$group - cut( dat$Var, breaks=c(-Inf,0.1, 0.6,Inf)) levels(dat$group) - LETTERS[1:3] --- Jeff NewmillerThe . . Go Live... DCN:jdnew...@dcn.davis.ca.usBasics: ##.#.