I started a brand new session in R 2.10.1 (on Windows).
If it matters, I am running the community edition of MySQL 5.0.67, and it is
all running fine.

I am just beginning to examine the process of getting timer series data from
one table in MySQL, computing moving averages and computing a selection of
estimates based on relations among moving averages of different variates,
and storing all the results in another table in MySQL.

The very first thing I did in this session was execute the following two
commands:

Sys.setenv(MYSQL_HOME='c:/MySQL')
library(RMySQL)

The output I got was:

Loading required package: DBI
Warning message:
In inDL(x, as.logical(local), as.logical(now), ...) :
  DLL attempted to change FPU control word from 8001f to 9001f

Now, I write programs in relatively high level languages (C++, perl, Java,
and now R), and NEVER even consider twiddling with FPU control words or
playing with registers on the processor.  I have never gotten this close to
the hardware since I messed with video memory in the old days when I wrote
computer based teaching materials on DOS and had to get acceptable
performance out of the hardware available way back then..  Consequently, I
have no idea what this warning means or what I ought to do about it.  I
assume the DLL it is referring to is
libmySQL.dll<http://www.stat.berkeley.edu/classes/s133/libmySQL.dll>,
which RMySQL needs.  But I have no idea either why it would do what R says
it is doing or why it matters to me, or what I ought to do about it.

I'd appreciate any info you can provide.

Thanks

Ted

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