Hi again a work for cut.
See ?cut and notice a labels option. Regards Petr r-help-boun...@r-project.org napsal dne 26.03.2010 11:37:20: > Hi All > > I have a column/variable called time difference. It has a whole list of > numbers from 0 through to the hundreds eg 236. I want to assign a > corresponding "name" to each variable from a predefined list: Month or > less, 1 -2 months, 2-3 months etc > > So the result would look something like: > > Time Difference Month > > 1 Month or less > > 365 1-2 years > > 52 2-3 months > > Etc > > > > I have tried using if elseif (as shown below), but it kept coming up > with the error: > > Error: > > In if (curvedata$Date.difference == "NULL") { : > > the condition has length > 1 and only the first element will be used > > 2: In if (curvedata$Date.difference <= 29) { : > > the condition has length > 1 and only the first element will be used > > 3: In if (curvedata$Date.difference <= 59) { : > > the condition has length > 1 and only the first element will be used > > > > If Else Statement: > > month <-if (curvedata$Date.difference =="NULL") {Month <-0} ifelse > > (curvedata$Date.difference <=29) {Month <-"month or less"} else if > > (curvedata$Date.difference <=59) {Month <-"1-2 months"} else if > > (curvedata$Date.difference <=89) {Month <-"2-3 months"} else if > > (curvedata$Date.difference <=119) {Month <-"3-4 months"} else if > > (curvedata$Date.difference <=149) {Month <-"4-5 months"} else if > > (curvedata$Date.difference <=179) {Month <-"5-6 months"} else if > > (curvedata$Date.difference <=209) {Month <-"6-7 months"} else if > > (curvedata$Date.difference <=239) {Month <-"7-8 months"} else if > > (curvedata$Date.difference <=269) {Month <-"8-9 months"} else if > > (curvedata$Date.difference <=299) {Month <-"9-10 months"} else if > > (curvedata$Date.difference <=329) {Month <-"10-11 months"} else if > > (curvedata$Date.difference <=359) {Month <-"11-12 months"} else if > > (curvedata$Date.difference <=719) {Month <-"1-2 years"} else > > {Month <-"More than 2 years"} > > > > I'm pretty new to R, so any help would be appreciated. > > Thanks > > Jessica > > _________________________________ > > Jessica Cathro | Business Analyst | Executive Education > London Business School | Regent's Park | London NW1 4SA | United Kingdom > Switchboard +44 (0)20 7000 7000| Direct line +44 (0)20 7000 7383 | > Email jcat...@london.edu <mailto:jcat...@london.edu> > > www.london.edu <http://www.london.edu/> | London experience. World > impact. > > > ______________________________________________________________________ > > This email has been scanned by the MessageLabs Email Security System > on behalf of the London Business School community. > For more information please visit http://www.messagelabs.com/email > ______________________________________________________________________ > [[alternative HTML version deleted]] > > ______________________________________________ > 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.