"sun" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Hi, > > I have a data frame df with column names a,b and c. sorry for some typos.
should be subdf = df[df$a==1,] and subdf = df[df$a==1 && df$b ==2,] ______________________________________________ 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.
