[R] What is ".Machine$double.eps"?

[Berend Hasselman]

Saji Ren wrote:
> 
> Hello,everyone:
> 
> I met this notation when I read the original code of function
> "quantile".There is one sentence as below:
>>eps <- 100 * .Machine$double.eps
> 
> when I input ".Machine$double.eps" in R, it returns "[1] 2.220446e-16".
> Can anyone show me the exact meaning about that?
> 

In R, type

?.Machine

and you will have your answer

Berend
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