Use a single "&" subdf = df[(df$a==1) & (df$b ==2),]
On Jan 11, 2008 7:26 AM, sun <[EMAIL PROTECTED]> wrote: > > "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. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem you are trying to solve? ______________________________________________ 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.
