Note, the R-intro.R is correct. svn diff R-intro.texi Index: R-intro.texi ==================================================================--- R-intro.texi (revision 71664) +++ R-intro.texi (working copy) @@ -1525,7 +1525,7 @@ After this assignment, the standard errors are calculated by @example -> incster <- tapply(incomes, statef, stderr) +> incster <- tapply(incomes, statef, stdError) @end example @noindent Evelyn Mitchell [[alternative HTML version deleted]]