I tested  "RNGkind" and  got the follwing output.
The firt command set the normal generator to the Buggy one without
warning.

I'm expecting the warning message will always be given whenever you set to the Buggy one.


RNGkind(normal.kind="Buggy")
RNGkind()
[1] "Mersenne-Twister"       "Buggy Kinderman-Ramage"
RNGkind(normal.kind="Buggy Kinderman-Ramage")
Warning message:
In RNGkind(normal.kind = "Buggy Kinderman-Ramage") :
  Buggy version of Kinderman-Ramage generator used.
RNGkind()
[1] "Mersenne-Twister"       "Buggy Kinderman-Ramage"
version
               _
platform       i386-pc-mingw32
arch           i386
os             mingw32
system         i386, mingw32
status
major          2
minor          6.2
year           2008
month          02
day            08
svn rev        44383
language       R
version.string R version 2.6.2 (2008-02-08)


========================================
Shengqiao Li

Research Associate
The Department of Statistics
PO Box 6330
West Virginia University
Morgantown, WV 26506-6330
========================================

On Fri, 14 Mar 2008, Prof Brian Ripley wrote:

On Fri, 14 Mar 2008, Paul Gilbert wrote:

Could you please supply complete details, including an example to
reproduce the error message you get.

The "Buggy Kinderman-Ramage" error message is produced when you try to
force the use of an old RNG that is known to have bugs. Usually it
should not appear, so I think you are doing something unusual.

And undocumented -- "Buggy Kinderman-Ramage" is not a documented value for normal.kind, so what happens when you use it (or any other undocumented value) is undefined. (It is not a bug to fail to pick up every user error.)


Paul Gilbert

Shengqiao Li wrote:
Unfortunately, RNGkind is buggy. It will not generate warnings
except the full name "Buggy Kinderman-Ramage" is supplied for normal.kind.

match.arg is supposed to be called before "==" comparison.

Quote your authority for this, please!


========================================
Shengqiao Li

Research Associate
The Department of Statistics
PO Box 6330
West Virginia University
Morgantown, WV 26506-6330

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La version fran??aise suit le texte anglais.


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Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
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