Does the new version of S-PLUS solve some of the seriuos
numerical accuracy problems pointed out in McCullough (1999)?
For an academic user like me, too many new versions are not good.
We wish they will simply fix the older versions.
For those who may have missed The American Statistician article , you may be
interested to know that B. D. McCullough has assessed the numerical
reliability of S-PLUS, SAS, and SPSS. The articles can be downloaded from
the TAS website http://www.amstat.org/publications/tas/
It seems that the random number generator(RNG) for s-plus fails four of the
DIEHARD tests and
ANOVA fails SmnLsg9 problem
Nonlinear regression fails to get good R-square for the Lancsos1 problem.
H. D. Vinod
Professor of Economics, Fordham University, Bronx, NY 10458
vinod@murray.fordham.edu
Web page: www.fordham.edu/economics/vinod
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