On Thu, 28 Jun 2007, Peter Dalgaard wrote: > 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...)
The definition of 'character string' used throughout the help is your 'character string literal', as distinct from an element of a character vector. -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ [email protected] 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.
