Hello, in the manual page for [.data.frame it reads: ... There is a method for replacement which checks \code{value} for the corrupt number of row, and replicates it if necessary. ... This should probably read ... There is a method for replacement which checks \code{value} for the correct number of rows, and replicates it if necessary. ... A trivial patch changing this is can be found here: http://www.statistik.tu-dortmund.de/~olafm/temp/edf_doc.patch Cheers, Olaf Mersmann