On Fri, 2 Apr 2010, Duncan Murdoch wrote:
On 02/04/2010 7:01 AM, Tal Galili wrote:
Hi all,
The call to:
library(rJava)
Results in the following warning massage:
Warning message:
In inDL(x, as.logical(local), as.logical(now), ...) :
DLL attempted to change FPU control word from 8001f to 9001f
After some searching I found the following explanation:
R expects all calls to DLLs (including the initializing call) to leave the
FPU control word unchanged. Many run-time libraries reset the FPU control
word during initialization; this will cause problems in R, and will result
in a warning message like "DLL attempted to change FPU control word from
8001f to 9001f". The value 8001f that gets reported is in the format
expected by the C library routine _controlfp; the raw value that is used
in the FPU register is 037F.
Also with a few old discussions that explain (for a package developer) how
to avoid this.
The question is, should I, as a useR, do anything regarding this warning
massage ?
It's a bug in the rJava package, so you should report it to the maintainer of
that package.
I suspect it is much more likely to be in the Java installation being
linked to, so you should make sure that is fully updated and report
its version to the maintainer if the problem persists.
It does not do this for me with Sun Java 1.6.0u18.
Duncan Murdoch
I use winXP , here is my sessionInfo()
R version 2.10.1 (2009-12-14)
i386-pc-mingw32
locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] rJava_0.8-3
Thanks,
Tal
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--
Brian D. Ripley, rip...@stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
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______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
