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Thread: Help analysing PCA plot?

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    Help analysing PCA plot?


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    So in a nutshell, all a plot really does is take all your ethnicity and average it to a location on the map. I don’t really know how to read these, as they are.more applicable to ancient populations and research papers. But if you were half Swedish and half Bosnian, you would realistically plot right in between those two places. As many of us here are fairly admixed, it’s not very useful except for entertainment purposes as plotting admixed people doesn’t really give a realistic ethnic picture.
    distance%=4.6465"
    Barcin_N,47.2
    Yamnaya_Samara,41.4
    WHG,10.6
    Ethiopia_4500BP,0.8

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    Thanks! I see it won’t be useful at all to me because I’m a mix of a few things.

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    Maybe saying it won’t be useful is a bit harsh but from my experience it’s not. I plot in Austria or sw Germany depending on the data, and while it seems logical, it doesn’t really tell me much in terms of actual ancestry. I do have German, but I have zero known Austrian so if I didn’t know how these things worked it would likely create more confusion
    distance%=4.6465"
    Barcin_N,47.2
    Yamnaya_Samara,41.4
    WHG,10.6
    Ethiopia_4500BP,0.8

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    Quote Originally Posted by digital_noise View Post
    Maybe saying it won’t be useful is a bit harsh but from my experience it’s not. I plot in Austria or sw Germany depending on the data, and while it seems logical, it doesn’t really tell me much in terms of actual ancestry. I do have German, but I have zero known Austrian so if I didn’t know how these things worked it would likely create more confusion
    I seem to plot in Austria on one or two but I have no known Austrian ancestry either, is that the same for all plot maps?

    Also, what does Balto_Slavic_South mean? Or what countries are included into that rather? It’s appearing in the single mode tool but I am not sure what it means

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