[EMAIL PROTECTED] wrote: > Hi R-helpers, > > I have a dataframe (called data) with 100 columns, the columns of which are > named with integers ranging from 1900 to 1999. > > I wish to extract those columns which names are >=1950 and <=1970. > > I tried: > > data2<-subset(data,select=(names(data)>=1950 & names(data)<=1970)) > > but that doesn't work. > > Any ideas?
## untested data[as.character(1950:1970)] > > Thanks! Mark > > [[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.
