The table in section 8.1 of Introduction to R, v. 2.2.0, lists the "additional arguments" for the F distribution as "df1, df1, ncp." I think it should be "df1, df2, ncp."
Thank you for the great R software and documentation, and continuing improvement! --Michael Callaham ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel