The notation '1L' mean to interprete the data as an 'integer'.
> str(1)
num 1
> str(1L)
int 1
>
> str(0xaa)
num 170
> str(0xaaL)
int 170
On Wed, Feb 23, 2011 at 11:08 AM, 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
>
> [[alternative HTML version deleted]]
>
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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>
--
Jim Holtman
Data Munger Guru
What is the problem that you are trying to solve?
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