I know it's not intended for NW Euros but I just like to see what comes up. Sometimes the fits are better than you might expect.
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Here is what some Wielkopolskans score in your calculator:
(can you reveal what are your 3 Slavic reference samples - I suppose modern Slovaks are among them)
https://i.imgur.com/GGsGofp.png
For comparison - here is how we plot in the Global25 PCA:
https://i.imgur.com/B9WNHjm.png
Not very probable, but at the same time it's entirely possible. You should look at more results of parents and offspring. This is more common than you think.
https://blogs.ancestry.com/ancestry/...hy-it-matters/
Those results aren't the best examples
https://blogs.ancestry.com/ancestry/...ween-sista.png
Because Ireland, Britain and West Euro ancestry are similar for those family as we see, and could be interchangeable to large extent. Look that their Finnish level is stable for example
Yes, but they prefer Bulgarian IA over Croatian for modeling. All Balkanites do actually except Slovenians/NW Croats and that's just probably genetic similarity not direct ancestry.
These BA Balkan samples are problematic so Sorbs and Czechs score substantially because it's similar to some celtic samples. I will most likely remove them in next run.