[R] Where are usages like "== 2L" documented?

[Bryan Hanson]

As the OP, I will say that I had deduced that it probably was a way of
specifying type integer, so I went to the ?integer page hoping for further
info.  I agree there should be some kind of short comment or see also at
that page.  I've been a self-taught user of R for about a year and a half,
and this is one of the better hidden pieces of information.  I had looked at
the R Lang document, and probably should again for some additional ideas,
but that was a long time ago.  I did an RSiteSearch("1L") but not
surprisingly this returns many uses of the feature, not the definition, at
least not in the first few pages.

Thanks for the tips.  Bryan
*************
Bryan Hanson
Acting Chair
Professor of Chemistry & Biochemistry
DePauw University, Greencastle IN USA



On 11/16/09 7:52 PM, "Gabor Grothendieck" <ggrothendieck at gmail.com> wrote:

> On Mon, Nov 16, 2009 at 7:25 PM, Duncan Murdoch <murdoch at stats.uwo.ca> wrote:
>> On 16/11/2009 6:47 PM, Steven McKinney wrote:
>>> 
>>> ?NumericConstants
>>> 
>>> will bring up a help page that mentions
>>> "All other numeric constants start with a digit or period and are either a
>>> decimal or hexadecimal constant optionally followed by L."
>>> 
>>> and
>>> 
>>> "An numeric constant immediately followed by L is regarded as an integer
>>> number when possible (and with a warning if it contains a "."). "
>>> 
>>> but I haven't found discussion of it anywhere else in the help pages.
>>> Others may know what other help pages discuss this.
>>> 
>>> I'm surprised that the help page invoked from
>>> ?integer
>>> does not discuss this.  Anyone know why not?
>> 
>> This is part of the syntax of the language.  It has nothing to do with the
>> integer() function, which is what ?integer is asking about.
> 
> It might be useful to have a SeeAlso to NumericConstants on that help
> page for those who looked up ?integer thinking it might be about
> integer constants.
> 
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