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st: Computers don't make mistakes, people do.
If you have a few minutes to spare you may want to
AIR POLLUTION RISKS:
Software Glitch Threw Off Mortality Estimates
Science Jun 14 2002: 1945-1947.
(Because of our rule about attachments, I cannot
What is reported there is a very subtle mistake of
some consequence that took five years to discover.
It came about because the researchers accepted a
default value in a canned program without
investigating its effects.
I know this would never happen to a Stata user;)
but I am bringing it to your attention because it
is awfully close to home (General Additive Model
in S-plus) and I think we can all learn from it.
When we have an excellent program at our disposal,
we may forget how complex it is, and get lulled
into not being sufficiently discerning.
Enjoy the summer (even though Italy and the US lost!)
Biostatistics Department Tel: 1-617-432-4911
Harvard School of Public Health Fax: 1-617-739-1781
655 Huntington Avenue email:firstname.lastname@example.org
Boston, MA 02115 http://biosun1.harvard.edu/~bio200
eppur si muove
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