[R] The L Word

Claudia Beleites cbeleites at units.it
Wed Feb 23 17:14:52 CET 2011


On 02/23/2011 05:08 PM, Gene Leynes 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).
It means that the number is an integer (a _L_ong integer of 32 bit actually)



>
> 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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-- 
Claudia Beleites
Dipartimento dei Materiali e delle Risorse Naturali
Università degli Studi di Trieste
Via Alfonso Valerio 6/a
I-34127 Trieste

phone: +39 0 40 5 58-37 68
email: cbeleites at units.it



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