Prof Brian Ripley wrote: > > > This is explained in ?regexp (in the See Also of ?regexpr): > > Patterns are described here as they would be printed by 'cat': _do > remember that backslashes need to be doubled when entering R > character strings from the keyboard_. > > and in the R FAQ and .... > > Hmm, that's not actually correct, is it? Perhaps this is better
"...entering R character string literals (i.e., between quote symbols.)" The counterexample would be > readLines() \\abc [1] "\\\\abc" (of course it is more important to get people to read the documentation at all...) -- O__ ---- Peter Dalgaard Ă˜ster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ R-help@stat.math.ethz.ch 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.