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Old 04-29-2012, 04:50 PM
dudefromdayton dudefromdayton is offline
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Join Date: Apr 2012
Posts: 140
Default Re: consistency issue on page 65

Alas, I got bit by that old dog, numerical instability. When I run 1,000 hypotheses, I get the much higher figure I reported. 10,000 brought me a lot closer, and 100,000 has me at 1.70 variance (and presumably moving in the direction of 1.69).

These tests take a lot longer than they might, because I solve the line equation with w-a-a-y too many CPU cycles. The upside is that the same code works with several other hypothesis sets to meet a short-term need.

I feel in general like I've faced a couple of numerical stability challenges in very recent time, and it's beneficial when students have to deal with it. I imagine there might be more ahead.

Last edited by dudefromdayton; 04-29-2012 at 04:52 PM. Reason: concluding ideas
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