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Archiver > GENEALOGY-DNA > 2010-06 > 1276743982


From: Vince Tilroe <>
Subject: Re: [DNA] World Haplogroup & Haplo-I Subclade Predictor
Date: Wed, 16 Jun 2010 21:06:22 -0600
References: <AANLkTim7Ipzx4TPUmKaoulxGh5cOQJebM-pwCa7t59xe@mail.gmail.com><014801cb0db9$4478a820$48692dae@Ken1>
In-Reply-To: <014801cb0db9$4478a820$48692dae@Ken1>


As noted on http://members.bex.net/jtcullen515/HaploTest.htm

"In basic terms, the Predictor makes a large number of random sample
observations of the entered haplotype and predicts, for each
observation, which modal haplotype best describes the sample of
markers."

Simply said, each comparison computation is performed against a random
>subset< of its internal database of modal halptypes, apparently for
efficiency's sake. Running several trials (i.e. 3 or more) and taking
the average of all of the percentages for each "match" usually gives the
most accurate prediction possible from this program.

Vince T.

Ken Nordtvedt wrote:
> He had a reason for that, and it was intentional. I forgot what it was,
> however.
>
>
> ----- Original Message -----
> From: "Greg Matthews" <>
> To: <>
> Sent: Wednesday, June 16, 2010 6:48 PM
> Subject: [DNA] World Haplogroup & Haplo-I Subclade Predictor
>
>
>
>> Has anyone noticed that if you keep pressing the Haplogroup Prediction
>> button on Jim Cullen's Haplogroup predictor page that the results will
>> change? I'm curious if this is a known issue and if it implies there
>> might
>> be a problem with the coding?

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