[Rd] R with redhat 7 (PR#732)
hyu@stats.uwo.ca
hyu@stats.uwo.ca
Wed, 8 Nov 2000 22:32:49 +0100 (MET)
Full_Name: Hao Yu
Version: 1.1.0 and 1.1.1
OS: Redhat 7 Linux (intel)
Submission from: (NULL) (129.100.45.161)
Hi, I am not sure this is well know problem but I could not find anyone mention
it.
The problem is related to build R on redhat 7. After got src.rpm and tried to
rebuild it, it failed on testing accuracy. Further it shows that under R,
.Machine gives some numbers that maybe are not correct. I also tried the most
recent one (November 6) and failed. The strange thing is that the R (1.1.0) that
comes with powertools of redhat 7 has exactly the same problem. All three R
gives the same results for .Machine. See the following outputs.
Thanks
Hao Yu
PS. One system has Pentium III 600Mhz and 256RDRAM, Intel CC820 motherboard;
Another has Pentium III 800Mhz and 256 SDRAM, ASUS BX motherboard.
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Version 1.1.1 Patched (November 6, 2000)
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> .Machine
$double.eps
[1] 1.084202e-19
$double.neg.eps
[1] 5.421011e-20
$double.xmin
[1] 0.25
$double.xmax
[1] 0.5
$double.base
[1] 2
$double.digits
[1] 64
$double.rounding
[1] 5
$double.guard
[1] 0
$double.ulp.digits
[1] -63
$double.neg.ulp.digits
[1] -64
$double.exponent
[1] 1
$double.min.exp
[1] -2
$double.max.exp
[1] -2
$integer.max
[1] 2147483647
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