Re: [R] Removing rows that are duplicates but column values are in reversed order

Thanks very much for your rapid help Arun. Vince On Apr 12, 2013, at 4:10 PM, arun kirshna [via R] wrote: Hi, >From your example data, dat1<- read.table(text=" id1 id2 value a b 10 c d11 b a 10 c e 12 ",sep="",header=TRUE,stringsAsFactors=FA

Re: [R] Removing rows that are duplicates but column values are in reversed order

Hi, >From your example data, dat1<- read.table(text=" id1   id2   value a  b   10 c  d    11 b a 10 c  e 12 ",sep="",header=TRUE,stringsAsFactors=FALSE) #it is easier to get the output you wanted dat1[!duplicated(dat1$value),] #  id1 id2 value #1   a   b