[R] Machine accurancy.
Peter Dalgaard BSA
p.dalgaard at biostat.ku.dk
Tue Jun 11 17:32:24 CEST 2002
Kenneth Cabrera <krcabrer at perseus.unalmed.edu.co> writes:
> >Why do you want to do this? R's precision is quite sufficient for almost
> >all scientific purposes, if used correctly.
> integer.max 2147483647
> I just want to use a bigger integer limit number for specific integer
Actually, FPUs handle integers up to the mantissa size exactly, at
least on Intel, so you can store integers up to 9007199254740992
(==2^53) just by keeping them in double variables.
You'll have to keep track of overflow and truncation issues yourself
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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