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Using similar outgroup pops as in the paper, I tried some other qpAdm models including ancients instead of modern populations like Tuscan or Lebanese, especially in light of the Roman paper results....

well that's quite weird

The results for neolithic/nuragic ones are expected, there should be more recent samples too though.

One of the two Dzudzuana samples was indeed U6, so it's consistent. The first U6 in the record should be Muierii2 in paleolithic Romania, then Dzudzuana, then there's also one U6 in copper age...

Immigration, yes, but above all globalism and anglo-american cultural imperialism. Nothing bad, mind you, about learning and being proficient in the current lingua franca, but it shouldn't overweight...

Basically it adds to the sources a 26th dimension on top of the 25 of Global25 which contains the distance from the source to the target(multiplied by a coefficient which depends on what you choose...

It seems like between Corsican and Gallurese a good degree of asymmetrical intellegibility has developed, a while ago we had some Corsican musical group perform in our city in Gallura, and apparently...

yup, it's just the standard global25 dataset with ancients no? doesn't it tell you the error in red at the top?

are you maybe including the header? remove the first line with PC1, PC2, etc...


as for this new feature, clever idea, in spirit it's not too different from nMonte's penalty trick

I live in Sardinia, albeit in the north, so I have a good idea about how Sardinians look. He is definitely off looking and not average, on the exotic side, but some archaic mediterranean types can...

Something like Latin spoke using a modern Romance syntax as closely as possible plus Spanish.

I think he actually kinda looks like the paleo-Sardinian plate...

I don't think so, especially those dialects with rolled /r/ sound pretty good imho. The higher the distance from the Netherlands and Denmark the better Germanic languages sound I think. The grammar...

Nice looking ones. The shape of the map alone almost suggests me you are using R's maps library?
Gradient looks pretty smooth too, are you perhaps adding one population multiple times to cover...

As for accuracy of scaled vs unscaled, it depends on what you want to do. I think scaled are nevertheless useful, for one every time you want to compute something where accuracy of distance matters,...

Seems unfair to use Ashkenazi, they are in great part European themselves. Comparison should be between Anglos and maybe Lebanese or Syrians.

Unfortunately many of the samples that are known from studies by the western coast do not seem to be on G25 either, like the ones circled and perhaps others.
https://i.imgur.com/AyDNvLE.png

Not sure tbh, I tried modeling that sample and it does seem like the African outlier from central Iberia, I4246, works better than Morocco_LN. But this may just represent a generic north African from...

It's probably both, but yeah I always thought there was more to it than just the moors, and the appearance of individuals with African/north African related ancestry in some outliers from the Olalde...

When modelling east med like populations it's better to include the usual 3 ancient near east references, CHG, Iran_N and Natufian. Needless to say Malta in particular also needs something north...

Out of boredom I did another PCA this time only focusing on ancient and modern European samples, it's amazing how ÜBER WHG these new mesolithic Italians are, you can almost see how much of rest of...

DEU_MA climbs somewhat higher and gets around ~20%, though I preferred to choose one of the northwest European-like Lombard samples from collegno.

I wouldn't say overfitting is a myth, especially...

So I've been working on a new admixture tool like nMonte which essentially produces similar results but much faster, maybe I'll release it later on if I see it working well, this allows me to seek...

Tried to quickly see how good these Italian mesolithic HGs fit other HGs since they plot as more extreme WHGs than what was available until now. Indeed some of the fits are quite good, Villabruna...

Indeed, the HGDP ones though should be pretty close to those from the interior. In another study I recall those from Arzana to be even more isolated. Would be nice to have some more Sardinians in G25.

why not? it's well known Sardinians are the closest to ancient European farmers and copper age Italians are basically that, EEF, but as the paper about Nuragics had shown, there is also a certain...