This came up at least once before, with regard to where it is
documented:
http://r.789695.n4.nabble.com/Where-are-usages-like-quot-2L-quot-documented-tt831061.html
I haven't looked around much to see if the documentation has changed,
but in a quick look at ?integer I don't see the concept mentioned. Of
course, it could be somewhere else. But, the concept is pretty
straightfoward.
Bryan
****************
Prof. Bryan Hanson
Dept of Chemistry & Biochemistry
DePauw University
602 S. College Ave
Greencastle IN 46135 USA
On Feb 24, 2011, at 3:13 AM, Tal Galili wrote:
Thank you all for the answers.
So if I may extend on the question -
When is it important to use 'Literal integer'?
Under what situations could not using it cause problems?
Is it a matter of efficiency or precision or both?
Thanks,
Tal
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On Wed, Feb 23, 2011 at 6:15 PM, Tsjerk Wassenaar
<tsje...@gmail.com> wrote:
Hi Gene,
It means 'Literal integer'.
So 1L is a proper integer 1, and 0L is a proper integer 0.
Hope it helps,
Tsjerk
On Wed, Feb 23, 2011 at 5:08 PM, Gene Leynes <gleyne...@gmail.com>
wrote:
I've been wondering what L means in the R computing context, and was
wondering if someone could point me to a reference where I could
read
about
it, or tell me what it's called so that I can search for it
myself. (L
by
itself is a little too general for a search term).
I encounter it in strange places, most recently in the "save"
documentation.
save(..., list = character(0L),
file = stop("'file' must be specified"),
ascii = FALSE, version = NULL, envir = parent.frame(),
compress = !ascii, compression_level,
eval.promises = TRUE, precheck = TRUE)
I remember that you can also find it when you step inside an apply
function:
sapply(1:10, function(x)browser())
Called from: FUN(1:10[[1L]], ...)
I apologize for being vague, it's just something that I would like
to
understand about the R language (the R word).
Thank you!
Gene
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--
Tsjerk A. Wassenaar, Ph.D.
post-doctoral researcher
Molecular Dynamics Group
* Groningen Institute for Biomolecular Research and Biotechnology
* Zernike Institute for Advanced Materials
University of Groningen
The Netherlands
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