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echo: evolution
to: All
from: Anon.
date: 2004-09-24 12:56:00
subject: Re: Population Genetics M

John Edser wrote:
>  "Anon."  wrote:
> 
> 
>>>>BOH:-
>>>>Basically, a frequency should be a count.
>>>>However, one can talk about a relative frequency, which is
a proportion
>>>>of a total count belonging to one species.  In population genetics,
>>>>frequency has been (mis-)used is this sense for a long time.
>>>>So, I think we just have to be aware that there is a mis-use of
>>>>terminology.
>>>
> 
>>>JE:-
>>>Would Dr O'Hara please expand on his recent admission
>>>(above) that: "In population genetics, frequency has
>>>been (mis-)used is this sense for a long time"
>>>and provide a simple example of such misuse.
>>
> 
>>BOH:-
>>I think you only need to see the thread that I was answering to see the
>>problems.  To make it absolutely clear: it is the use of the word
>>"frequency" to mean "proportion" that is problematic.
> 
> 
> JE:-
> Previously you wrote:
> "Basically, a frequency should be a count.
> However, one can talk about a relative frequency, which is a proportion
> of a total count belonging to one species.  In population genetics,
> frequency has been (mis-)used is this sense for a long time."
> 
> Do you mean by "basically, a frequency should be a count"
> that gene frequencies within one population should be a
> TOTAL count? 

Err, for gene frequencies I bow down the to conventional usage within 
population genetics by not using the term to mean a count, but a proportion.

This is a separate issue to the one over the definition of fitness, so 
I'm not gonig to enter into that debate again.  I've given you my 
opinions on that many times, and it's clear that you won't accept them.

Bob

-- 
Bob O'Hara

Dept. of Mathematics and Statistics
P.O. Box 68 (Gustaf H„llstr”min katu 2b)
FIN-00014 University of Helsinki
Finland

Telephone: +358-9-191 51479
Mobile: +358 50 599 0540
Fax:  +358-9-191 51400
WWW:  http://www.RNI.Helsinki.FI/~boh/
Journal of Negative Results - EEB: http://www.jnr-eeb.org
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