On Fri, 22 Dec 2006, Kurt Hornik wrote: >>>>>> Martin Maechler writes: > >>>>>> "DeepS" == Deepayan Sarkar <[EMAIL PROTECTED]> >>>>>> on Thu, 21 Dec 2006 22:07:27 -0800 writes: > > DeepS> The old apropos started with: if > DeepS> (!is.character(what)) what <- > DeepS> as.character(substitute(what)) > > DeepS> The new one has: > > DeepS> if (character.only) stopifnot(is.character(what)) > DeepS> else what <- as.character(substitute(what)) > > DeepS> i.e., the check for is.character(what) is > DeepS> missing. This has the effect that 'what' can no > DeepS> longer be a character string generated by a function > DeepS> call unless 'character.only = TRUE'. I don't think > DeepS> this was intended; the change makes previously valid > DeepS> use invalid and I can't think of a situation where it > DeepS> is useful. > >> [ Did you read the corresponding NEWS entry? ] > >> It now parallelizes the use in library() , require() etc, >> and in particular does what the documentation says it does! > >> The old behavior was much less consistent and not according to >> documentation: > >> apropos(lm) was equivalent to apropos("lm") >> but apropos(fit) gave an error. > > I would actually prefer if we only had standard evaluation for apropos() > and find(). > > (I understand we cannot do this for library() and help().)
I agree completely. If it is OK to make changes that make previous usage fail then it would be better to go to standard evaluation and let apropos(lm) fail. luke -- Luke Tierney Chair, Statistics and Actuarial Science Ralph E. Wareham Professor of Mathematical Sciences University of Iowa Phone: 319-335-3386 Department of Statistics and Fax: 319-335-3017 Actuarial Science 241 Schaeffer Hall email: [EMAIL PROTECTED] Iowa City, IA 52242 WWW: http://www.stat.uiowa.edu ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel