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Archiver > DNA-R1B1C7 > 2009-01 > 1231673481


From: "Sandy Paterson" <>
Subject: Re: [R-M222] Genetic Distance/Diversity
Date: Sun, 11 Jan 2009 11:31:21 -0000
References: <000a01c973d4$93059f50$6400a8c0@NEWCOMPUTER>
In-Reply-To: <000a01c973d4$93059f50$6400a8c0@NEWCOMPUTER>


Hi Harold

Yes, the distribution does look normal-ish. What I think may be worth
investigating is using the gd distribution as a means of estimating the
maturity of the group in terms of how many generations it would take to
reach an observed level of mean gd. An older group would have a larger mean
gd than a younger group. It could be a reasonable alternative to the
variance method.

Sandy


-----Original Message-----
From:
[mailto:] On Behalf Of Harold
Sent: 11 January 2009 10:08
To:
Subject: [R-M222] Genetic Distance/Diversity





Message: 1

Date: Sat, 10 Jan 2009 23:16:09 EST

From:



John wrote:

I went through the entire M222 project plotting GDs against the M222 modal
from the McGee Utility.



0 (1)

1 (10)

2 (22)

3 (46)

4 (76)

5 (60)

6 (75)

7 (53)

8 (42)

9 (7)

10 (6)

11 (1)



I don't know how others would interpret this but the main cluster of the
group appears to come in at between 4-6 GDs against the M222 modal. This
group includes several large surname groups (Doherty, Ewing and McLaughlin)
plus some smaller ones (Dunbar, McCord, Cowan, Duncan) and a lot of
singletons. , , ,



If the surnames are ignored and the skewing is assumed to be from an
insufficient sample, this looks very much like a normal distribution curve.
That in itself means nothing in itself: a hypotheses could be examined with
the data, but a hypothesis can't be created from the data. A it stands, it
is only a correlation between two sets of numbers. An example: years ago,
I read an article that demonstrated a very good correlation of the sales of
cigarette lighter fuel and the incidence of lung cancer. The article was an
argument against using statistics to determine public policy and was not
intended to show causality.



Harold


R1b1c7 Research and Links:

http://clanmaclochlainn.com/R1b1c7/
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