Hi Sorry, I am not sure why sometimes is a text from my answeres stripped off.
On 14 Sep 2005 at 14:09, Carlos Mauricio Cardeal Mende wrote: > Ok Petr, I run your suggestion and I got this message: > > > age<-sample(seq(10,50,10), 20, replace=T) > > > > if (age <=10) {group <- 1} else if (age > 10 & age <= 20) {group <- > > 2} else {group <- 3} > Warning message: > the condition has length > 1 and only the first element will be used > in: if (age <= 10) { > > What does it means ? Others has already answered it but I told you that if command is not vhat you probably want and suggested to use cut e.g. cutvector <- c(0,10,20,100) group <- as.numeric(cut(age,cutvector)) You can change your cutvector according to your wish anytime before calling the second function HTH Petr > > And when I look to the database I have no new classification ! > > Could you help please ? > > Mauricio > > Petr Pikal escreveu: > > > Hallo > > > > > > On 13 Sep 2005 at 10:29, Carlos Maurício Cardeal Mende wrote: > > > >> Hi everyone ! > >> > >> Could you please help me with this problem ? > >> > >> I´ve trying to write a code that assign to a variable the content > >> from another, but all I´ve got is a message error. For example: > >> > >> if (age <=10) {group == 1} > >> else if (age > 10 & age <= 20) {group == 2} > >> else {group == 3} > > > > if you put your statement on one line it works (at least it does not > > give you syntax error) but the result is hardly what you really > > expect > > > > age<-sample(seq(10,50,10), 20, replace=T) > > > > if (age <=10) {group <- 1} else if (age > 10 & age <= 20) {group <- > > 2} else {group <- 3} if (age <=10) {group == 1} else if (age > 10 & > > age <= 20) {group == 2} else {group == 3} > > > > Maybe you want something like > > > > group<-as.numeric(cut(age,c(0,10,20,100))) > > > > but it is only guess > > > > HTH > > Petr > > > >> > >> Syntax error > >> > >> Or > >> > >> if (age <=10) {group == 1} > >> else (age > 10 & age <= 20) {group == 2} > >> else {group == 3} > >> > >> Syntax error > >> > >> I know that is possible to find the solution by ifelse command or > >> even recode command, but I´d like to use this way, because I can > >> add another variable as a new condition and I believe to expand the > >> possibilites. > >> > >> Thanks, > >> Mauricio > >> > >> ______________________________________________ > >> R-help@stat.math.ethz.ch mailing list > >> https://stat.ethz.ch/mailman/listinfo/r-help > >> PLEASE do read the posting guide! > >> http://www.R-project.org/posting-guide.html > > Petr Pikal [EMAIL PROTECTED] ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html