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.