> There's another thing worth noting -- the SpamAssassin score distribution
> for hams and spams isn't even.
I don't necessarily see that those particular curve shapes necessarily in
any way invalidate this method, although they do bias the method somewhat.
The two curves are essentially smooth curves with no major dips or bumps in
them, so it is possible to select a ratio without getting inversions in the
ratio as the selector moves from left to right. You may have to be careful
of calculating the ratio, given that ham goes to effectively zero above a
certain value. But n:0 and 3.45n:0 are still perfectly valid ratios to deal
with, even if one of the terms is zero.
Loren
