Re: [R] 64 bit R double precision

2009-05-07 Thread Peter Dalgaard
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

Re: [R] 64 bit R double precision

2009-05-07 Thread Duncan Murdoch
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

[R] 64 bit R double precision

2009-05-07 Thread Paul Emberson
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 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read