Re: [R] Is there a overall calculation precision control in R

2012-04-20 Thread Jeff Newmiller
The straight answer is "no", there is plenty of precision available in a double precision float. Nevertheless, keep in mind that some algorithms require iteration toward their solution and may have function arguments such as "tol" (tolerance) documented in the help files that define "good enoug

Re: [R] Is there a overall calculation precision control in R

2012-04-20 Thread R. Michael Weylandt
On the R level, I believe you're limited by the type of numeric representation being used: either 32-big integer or 64-bit double. See the storage.mode() of your objects. External code can make use of 128-bit types if desired, but I don't believe those can be naturally represented back at the R lev

[R] Is there a overall calculation precision control in R

2012-04-20 Thread Michael
Hi all, I know the overall display precision can be changed in R... but what about overall calculation precision? Thank you! [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-hel