On Wed, 20 Jul 2011, David A. Johnston wrote:
I understand that the coercion to a list is somewhat trivial. The coercion
is a little less obvious when apply()'s output is a matrix. For example,
x = matrix(1:12, 3, 4)
apply(x, 1, range)
[,1] [,2] [,3]
[1,] 1 2 3
[2,] 10 11 12
structure(as.list(as.data.frame(apply(x, 1, range))), names = NULL)
[[1]]
[1] 1 10
[[2]]
[1] 2 11
[[3]]
[1] 3 12
Still relatively easy, but I do think it would be logical and intuitive if
apply() had the same types of arguments as the other similar *apply
functions.
But you are not the person who would have to maintain the added
complexity. There need to be really good arguments for adding code to
the standard packages (and base in particular): nothing is stopping
you writing daj_apply() for your own use, and providing you give due
credit (which many R packages do not for code modified from R)
distributing it.
-David Johnston
--
View this message in context:
http://r.789695.n4.nabble.com/apply-returning-a-list-tp3679619p3681695.html
Sent from the R devel mailing list archive at Nabble.com.
______________________________________________
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
--
Brian D. Ripley, rip...@stats.ox.ac.uk
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
______________________________________________
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
