Thread 17810550 - /his/ [Archived: 632 hours ago]

Anonymous
7/3/2025, 5:18:52 AM No.17810550
learn the difference
learn the difference
md5: 95e07f07f2af0083db31b0812e62162f๐Ÿ”
Why does G25 does this? It more than doubles the amount of Natufian in populations. The Saudi results are completely different in qpAdm. I wish I was autistic enough to learn how qpAdm works.
Replies: >>17810569
Anonymous
7/3/2025, 5:27:10 AM No.17810562
Use DNA studios if youโ€™re too dumb to use qpAdm
Anonymous
7/3/2025, 5:31:09 AM No.17810569
>>17810550 (OP)
Both qpAdm and G25 can be wrong. qpAdm is not a magic bullet. Before assuming one or the other is right or wrong, you need to understand why.

I can explain G25 a little: G25 admixture analysis is just sophisticated PCA navigation in 25-dimensional space. It has no inherent historicity. Every model you make with a low distance in G25 is "true" but only in the sense that the sources chosen are capable of explaining the position and drift of a target on a PCA. It need not make sense historically. For example, you could model some ancient Europeans as Swedish + Somalian, because Somalian is capable of capturing the drift away from Swedish. But that doesn't reflect a historical truth, only a truth about shifts away from a given position in 25-dimensional space. Basically any given European could be modeled as some degree of modern West Eurasian + modern East Asian + modern African even though this isn't true.
Replies: >>17810688
Anonymous
7/3/2025, 7:09:57 AM No.17810688
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md5: 03e43561236266ec825a3624142c9e67๐Ÿ”
>>17810569
It's a result of bad interpretation. It's confusing Natufian with ANF and actual African admixture. G25 PCAs also don't always match studies.