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Archiver > GENEALOGY-DNA > 2011-11 > 1320572228


From: <>
Subject: Re: [DNA] Any feedback on the RCC method of TMRCA estimates?
Date: Sun, 6 Nov 2011 09:37:08 -0000
References: <CAKWx04Ts9vKT4W9nGpPvNMUNyXo-dXfeE89XRGgoO78GdioCOg@mail.gmail.com><744DB3B023EF47698340D9AB3082068B@bobPC><000001cc9c57$c5d748d0$5185da70$@com>
In-Reply-To: <000001cc9c57$c5d748d0$5185da70$@com>


I used the MS Excel 2010 Correlation Coeficient function.

RCC is 10000 *(1 - Correlation Coefficient)

Bob bootle

----- Original Message -----
From: "Sandy Paterson" <>
To: <>
Sent: Sunday, November 06, 2011 7:43 AM
Subject: Re: [DNA] Any feedback on the RCC method of TMRCA estimates?


> It might be an idea to reproduce the answers for the so-called correlation
> coefficients to see whether they really are correlation coefficients.
>
> Perhaps you already have?
>
> Sandy
>
>
>
> -----Original Message-----
> From:
> [mailto:] On Behalf Of
>
> Sent: 05 November 2011 23:21
> To:
> Subject: Re: [DNA] Any feedback on the RCC method of TMRCA estimates?
>
> It works well for the Z326 Haplogroup, giving a TMRCA of about 3000 years.
> This is a little higher than by the 'population variance' method,
> but I used 66 markers instead of 37 and adjusted the factor from 43 to 53.
>
> In general, using the pairwise correlation coefficients of the haplotype
> arrays
> seems to me to be as reasonable as using the pairwise absolute genetic
> distances.
>
> Bob Bootle
> ----- Original Message -----
> From: "Mike W" <>
> To: <>
> Sent: Saturday, November 05, 2011 2:09 PM
> Subject: [DNA] Any feedback on the RCC method of TMRCA estimates?
>
>
>> This method of TMRCA estimates is in a 2009 Journal of Genetic Genealogy
>> issue.
>> http://www.jogg.info/52/files/Howard1.pdf
>>
>> The RCC method is being used to estimate the age of M222 and the
>> estimates
>> seem a little high to me, but I'm not familiar with this approach. Does
>> it
>> look reasonable?
>>
>> Mike W
>>
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