Re: [R] group data in classes

Hi, Try: year1<- 1598:1997  indx<-findInterval(year1,seq(1591,2000,by=10)) group<-seq(1590,2000,by=10) ind<-seq(1,length(group),by=1) labl1<-paste(group[ind],group[ind+1],sep="-")[-42] dat1<- data.frame(year=year1,decade=labl1[indx],stringsAsFactors=FALSE) head(dat1,5) #  year    decade #1 1598 1

Re: [R] group data in classes

brs <- seq(1590,2000,by=10) lbs <- paste(brs[-length(brs)],brs[-1],sep="-") y <- cut(x,breaks=brs,labels=lbs) # Where "x" is your data vector. grpd <- data.frame(year=x,decade=y) head(grpd) yeardecade 1 1598 1590-1600 2 1599 1590-1600 3 1600 1590-1600 4 1601 1600-1610 5 1602 1600-1610 6 16