Elimination of outliers when calculating population averages on GEDmatch

[Dunai]

I had the same dilemma when making the Hungarian regional averages, but if someone has largely ethnic Hungarians (85%+) among their great grandparents than even if that person is an outlier compared to other ethnic Hungarians, I did include them, since outliers will exist all the time, and why should that person's result be considered less "Hungarian-like" while most of his or her great grandparents were indeed ethnic Hungarians? I guess same can be applied to all other ethnic groups, including Turkish people. When you exclude outliers you are cherry picking and the results will thus not be as representative than with outliers included.

[mentalanesthesia]

I thought of people who have non-Turkic ancestors in last 2-3 generations. I guess they make 40% of Turkish population or no?

Can you elaborate on that 40 percent? Which peoples constitute the 40 percent non-Turkic "Turkish" population?

[placebo]

I thought of people who have non-Turkic ancestors in last 2-3 generations. I guess they make 40% of Turkish population or no?

Impossible in my opinion. Not more than 30% maybe %20. (thanks to the kurds, they're 11-15 million)

[reboun]

Can you elaborate on that 40 percent? Which peoples constitute the 40 percent non-Turkic "Turkish" population?

I mean people with known non-Turkic speaking background in last 2-3 generations, such as Bosniak, Arabic, Circassian and etc. Maybe not 40% but my observations tell me that people with such roots are common.

[reboun]

Can you elaborate on that 40 percent? Which peoples constitute the 40 percent non-Turkic "Turkish" population?

Impossible in my opinion. Not more than 30% maybe %20. (thanks to the kurds, they're 11-15 million)

Yes, 20-30% sounds more reasonable than 40%.

[mentalanesthesia]

Yes, 20-30% sounds more reasonable than 40%.

Abi Türküm de geç çok kafana takma bu meseleleri. Büyük ihtimalle gelecekte Türkiye'nin nüfusu daha da homojenleşecek büyük şehirlerde devam eden karışmalarla. Ama bu süreç şu an daha tamamlanmadı ve halklar arasındaki sınırlar hala duruyor.

[reboun]

When you exclude outliers you are cherry picking and the results will thus not be as representative than with outliers included.

I completely agree. Excluding outliers is nothing but a kind of cherry-picking.

[RogueState]

Sample manipulation, unweighted samples, etc. are all traditional techniques of data manipulation (not only in the case of genetics, but everywhere)

If you are interested technically on how to remove outliers, take a statistical course or book on Robust statistics

[princeton90]

I had the same dilemma when making the Hungarian regional averages, but if someone has largely ethnic Hungarians (85%+) among their great grandparents than even if that person is an outlier compared to other ethnic Hungarians, I did include them, since outliers will exist all the time, and why should that person's result be considered less "Hungarian-like" while most of his or her great grandparents were indeed ethnic Hungarians? I guess same can be applied to all other ethnic groups, including Turkish people. When you exclude outliers you are cherry picking and the results will thus not be as representative than with outliers included.

Elimination of outliers is not cherry-picking, it's done in almost all statistical calculations. If one's DNA is an outlier then he or she clearly has foreign ancestry.

[reboun]

Elimination of outliers is not cherry-picking, it's done in almost all statistical calculations. If one's DNA is an outlier then he or she clearly has foreign ancestry.

Elimination of outliers is cherry-picking, period.