[R] R on HP-UX, again: modreg.sl fails, 1 arith test fails
Peter Dalgaard BSA
p.dalgaard at biostat.ku.dk
Fri Sep 15 16:22:45 CEST 2000
Thomas Hoffmann <hoffmann at ehmgs2.et.tu-dresden.de> writes:
> > library(modreg)
> results in
> Error in dyn.load(x, as.logical(local), as.logical(now)) :
> unable to load shared library "/usr/local/lib/R/library/modreg/libs/modreg.sl":
> can't open /usr/local/lib/R/library/modreg/libs/modreg.sl
> Error in library(modreg) : .First.lib failed
Hmm. And the file exists and has the proper permissions?
> Another problem is the failure of the arith test:
> abs(1 - x / asin(sin(x)))
> results in values greater then Meps for x=0.53 and 0.56.
> Has anybody seen this? Because the arith test is a basic test, this seems to be rather
> specific to my machine/libs.
> At least, I have R running at the HP system and can use my 21" monitor, instead having
> to go to our smallish Win95 computer. But with failed arithmetic tests I am not that
> confident in the results I will get ...
Um, how much greater are they? On ix86, I get
> min(1 - x / asin(sin(x)))
> max(1 - x / asin(sin(x)))
You could try the same test in raw C, and depending on the result
report an error in R, or lose confidence in *anything* computed on
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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