Hi, I guess this is what you are looking for,
dat[dat$AGE<=40 & da$AGE>=30,"TRUE/FALSE"]<-TRUE A.K. ----- Original Message ----- From: Rantony <antony.akk...@ge.com> To: r-help@r-project.org Cc: Sent: Monday, May 28, 2012 10:01 AM Subject: [R] Hash Table - Select and Change Data iniside Matrix Using "Between" Hi, Here i have been an matrix like this, *NAME AGE PALCE TRUE/FALSE* ABC 20 INDIA XYZ 30 FRANCE PQR 40 USA MNO 30 KENIYA DEF 25 AUSTRALIA GTY 34 CANADA BNH 38 JAPAN Here, *TRUE/FALSE *Column containing empty values. So my requirement what is, need to change all the TRUE/FALSE column value into "TRUE" where *AGE= 32*. Note :- i dont want to use any loop and do. Main intension is avoid loop,bcz there is a bulk of data. Final Matrix should be like this *NAME AGE PALCE TRUE/FALSE* ABC 20 INDIA XYZ 30 FRANCE PQR 40 USA MNO 30 KENIYA DEF 25 AUSTRALIA GTY 34 CANADA TRUE BNH 38 JAPAN TRUE and finally got 1 solution like this, If "dat" is the name of your data.frame, dat[dat$AGE == 30,"TRUE/FALSE"] <- TRUE But how will use if i want to change to TRUE, *AGE between *30-to-40 ? Immediate Help Requied -- View this message in context: http://r.789695.n4.nabble.com/Hash-Table-Select-and-Change-Data-iniside-Matrix-Using-Between-tp4631582.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
