In reading ?is.R, I noticed what appears to be a typo. The "diff -u" output based on R-devel downloaded today vs. a possible change is below. Thank you, Stephen --- ./src/library/base/man/isR.Rd Tue Jul 20 11:46:24 2004 +++ /tmp/isR.Rd Mon Nov 14 16:13:27 2005 @@ -12,7 +12,7 @@ The function has been written such as to correctly run in all versions of \R, S and S-PLUS. In order for code to be runnable in both \R and S dialects, either - your the code must define \code{is.R} or use it as + the code must define \code{is.R} or use it as \code{if (exists("is.R") && is.function(is.R) && is.R()) \{}\cr \code{ }\emph{\#\# R-specific code}\cr :::::::::::::::::::::::::::::::::: Stephen Weigand Division of Biostatistics Mayo Clinic Rochester, Minn., USA Phone (507) 266-1650, fax 284-9542