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Bias in R's random integers?

Ben Bolker
On 2018-09-19 09:40 AM, David Hugh-Jones wrote:
Balancing backward compatibility and correctness is a tough problem
here.  If this goes into base R, what's the best way to do it?  What was
the protocol for migrating away from the "buggy Kinderman-Ramage"
generator, back in the day?   (Version 1.7 was sometime between 2001 and
2004).

  I couldn't find the exact commit in the GitHub mirror: this is related ...

https://github.com/wch/r-source/commit/7ad3044639fd1fe093c655e573fd1a67aa7f55f6#diff-dbcad570d4fb9b7005550ff630543b37



===
?normal.kind? can be ?"Kinderman-Ramage"?, ?"Buggy
     Kinderman-Ramage"? (not for ?set.seed?), ?"Ahrens-Dieter"?,
     ?"Box-Muller"?, ?"Inversion"? (the default), or ?"user-supplied"?.
     (For inversion, see the reference in ?qnorm?.)  The
     Kinderman-Ramage generator used in versions prior to 1.7.0 (now
     called ?"Buggy"?) had several approximation errors and should only
     be used for reproduction of old results.

Thread (35 messages)

Carl Boettiger Bias in R's random integers? Sep 18 Duncan Murdoch Bias in R's random integers? Sep 19 Iñaki Ucar Bias in R's random integers? Sep 19 David Hugh-Jones Bias in R's random integers? Sep 19 Ben Bolker Bias in R's random integers? Sep 19 Duncan Murdoch Bias in R's random integers? Sep 19 Philip B. Stark Bias in R's random integers? Sep 19 Duncan Murdoch Bias in R's random integers? Sep 19 Philip B. Stark Bias in R's random integers? Sep 19 Duncan Murdoch Bias in R's random integers? Sep 19 Philip B. Stark Bias in R's random integers? Sep 19 Duncan Murdoch Bias in R's random integers? Sep 19 Philip B. Stark Bias in R's random integers? Sep 19 Philip B. Stark Bias in R's random integers? Sep 19 Duncan Murdoch Bias in R's random integers? Sep 19 David Hugh-Jones Bias in R's random integers? Sep 19 Duncan Murdoch Bias in R's random integers? Sep 19 Ben Bolker Bias in R's random integers? Sep 19 Carl Boettiger Bias in R's random integers? Sep 19 Ralf Stubner Bias in R's random integers? Sep 20 Duncan Murdoch Bias in R's random integers? Sep 20 Paul Gilbert Bias in R's random integers? Sep 20 Gabriel Becker Bias in R's random integers? Sep 20 Hervé Pagès Bias in R's random integers? Sep 20 Steve Grubb Bias in R's random integers? Sep 20 Philip B. Stark Bias in R's random integers? Sep 20 Ralf Stubner Bias in R's random integers? Sep 21 Steve Grubb Bias in R's random integers? Sep 21 Dirk Eddelbuettel Bias in R's random integers? Sep 21 Dirk Eddelbuettel Bias in R's random integers? Sep 21 Luke Tierney Bias in R's random integers? Sep 21 Ralf Stubner Bias in R's random integers? Sep 21 Steve Grubb Bias in R's random integers? Sep 21 Steve Grubb Bias in R's random integers? Sep 21 Ralf Stubner Bias in R's random integers? Sep 27