Dear all, Does R use double precision for calculation as default?
If not, how to enforce double precision calculation in R for my
current calculation session?
I Use R-2.14.0 with windows XP.
Thanks,
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nt chore, though). Mostly, I was curious as to
where this fell on the priority schedule. Admittedly, 64-bit integers are
certainly more of a convenience than a necessity. I sincerely appreciate all
the hard work put into a world class project such as this.
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ht
On 8/19/2009 1:49 PM, miller_2555 wrote:
Roger Bivand wrote:
On Tue, 5 Dec 2006, Yoni Schamroth wrote:
Hi,
I am attempting to query a data frame from a mysql database.
One of the variables is a unique identification number ("numeric") 18
digits
long.
I am struggling to retrieve this variabl
t values.
Do significant practical challenges exist in the implementation of a 64-bit
integer that would outweigh the faster and cleaner compatibility with
database backends?
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Paul Emberson wrote:
Hi,
If R is compiled for a 64 bit platform, does the double data type make
use of the additional precision or is it set at a fixed length?
No. Double is double, 64 bits, although sometimes 80 bits when things
are kept in registers. However, even though the FPU is identic
On 5/7/2009 12:56 PM, Paul Emberson wrote:
Hi,
If R is compiled for a 64 bit platform, does the double data type make
use of the additional precision or is it set at a fixed length?
It is still a 64 bit floating point value. R may use "long double"
internally for some calculations, but the
Hi,
If R is compiled for a 64 bit platform, does the double data type make
use of the additional precision or is it set at a fixed length?
Thanks,
Paul
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