significant digits?

David Relson relson at osagesoftware.com
Thu Apr 10 01:07:22 CEST 2003


At 06:55 PM 4/9/03, Jim Correia wrote:

>Does bogofilter keep track of significant digits when doing its 
>calculations, and take them into account when applying the cutoff value?
>
>X-Bogosity: No, tests=bogofilter, spamicity=0.949660, version=0.11.1.6
>
>Just curious if that one should have been caught with a spam_cutoff of 
>0.95 (which isn't represented exactly as that in binary anyway.)
>
>Jim

No.  0.95 converts internally to 0.9500000 (or something similar) and 
bogofilter uses the converted value.  Implementing rounding _could_ be 
done, but there's no point.  If someone wants 0.94966 to indicate spam, 
then they should specify a spam_cutoff value.

David





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