Re: [R] Need some help on Text manipulation.

2013-01-15 Thread arun
uot;),unique))  Dat1$att<-ifelse(vec1%in%Replace,vec1,Dat1$att) Dat1$att # [1] "b"  "b"  "b"  "d"  "uu" "t"  "vv" "c"  "a"  "d"  "a"  "b"  "b"  "b"  "b&qu

Re: [R] Need some help on Text manipulation.

2013-01-15 Thread Pascal Oettli
Hi, If you only need "aa" to be replaced by "a", "bb" by "b" and so on, try the following: Dat$att <- as.factor(substr(Dat$att,1,1)) HTH, Pascal Le 15/01/2013 18:48, Christofer Bogaso a écrit : Dear all, Let say I have following data-frame: Dat <- structure(list(dat = c(-0.38779584295632