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Thread: Percentage of unassigned in 23&me results

  1. #1
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    Percentage of unassigned in 23&me results

    How much you have? If there are people who have more than few percent unassigned?

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     Tomenable (01-22-2018)

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    This is mine at the various levels of confidence mine is V4. Waiting on my father's results who will be V5.

    Speculative - 0.8%
    60% - 2.1%
    70% - 3.2%
    80% - 4.9%
    90% - 23.3%
    Ethnogene: 51.4% NW European, 21.6% W European, 10.1% Southeastern African, 9.5% Southeast Asian, 4.4% South Asian, 2% Scandinavian, 1% East African
    Papertrail @ 2xggrandparents: 37.5% London, 25% Dorset, 25% Mauritius, 6.25% Netherlands, 6.25% Hampshire

  4. #3
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    Seems to vary with confidence level:

    90% Level: 96.7% European, 3.2% Unassigned
    80% Level: 99.2% European, 0.6% Unassigned
    70% Level: 99.5% European, 0.2% Unassigned
    60% Level: 99.5% European, <0.1% Unassigned
    50% Level: 99.6% European, <0.1% Unassigned

    For what its worth, I personally don't believe any percentage less than about 5-6% with any of the big three DNA companies. As I 've tried to stress around here before, its not the algorithms they use, its their Reference populations. Until we either have real historical DNA to compare to, or when reference populations are in the several tens of thousands, a score of 5% or less is suspicious and generally the result can all too easily be explained by the variance/errors in the reference pops, though some people seem to find family tree evidence for such small percentages.

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     therrien.joel (01-06-2018)

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    Quote Originally Posted by lukaszM View Post
    How much you have? If there are people who have more than few percent unassigned?
    I have v5.
    At 50% speculative mode: 0% Unassigned, 100% SouthAsian.
    At 90% conservative mode' 5% Unassigned, 95% SouthAsian.

    I was surprised how they were willing to assign so much to South Asian and nothing to East Asian.

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    In 90% Conservative mode my mother gets 20.7%, and I get 11.4%. My daughter gets 3.2%. In 50% Speculative my mother gets 0.8, I get 0.2% , and my daughter has <0.01%.
    Maternal Grandfather's mtDNA: K2b1

  8. #6
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    Quote Originally Posted by fostert View Post
    Seems to vary with confidence level:

    For what its worth, I personally don't believe any percentage less than about 5-6% with any of the big three DNA companies. As I 've tried to stress around here before, its not the algorithms they use, its their Reference populations. Until we either have real historical DNA to compare to, or when reference populations are in the several tens of thousands, a score of 5% or less is suspicious and generally the result can all too easily be explained by the variance/errors in the reference pops, though some people seem to find family tree evidence for such small percentages.
    Even thousands of references won't rescue that issue. There will come a time when people will have to come to terms with the fact that variances within a population can easily be greater than the mean differences between populations. Honestly, the sooner we drop this percentage idea all together the better. We are probably in a position to be able to do a yes/no assessment for the presence of a population in someone's ancestry even at the 1-2% level (at least on the continental/regional scale) but beyond that I don't think we are anywhere close to being able to pinpoint the generation at which that ancestry comes in.

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     Nibelung (01-06-2018)

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    At 90% confidence level, I have 4.9% unassigned. The assigned is fully European.

    At 80% it drops to 2.1% and the non-European admixtures start showing up.

  11. #8
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    At
    50% it's <.1%
    60% it's <.1%
    70% it's .3%
    80% it's .6%
    90% it's 2.4%

  12. #9
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    V5

    Confidence Unassigned
    50%: .1%
    60%: .5%
    70%: 1.1%
    80% 2.0%
    90%: 3.9%

  13. #10
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    V4

    50%: 0.7%
    60%: 7.8%
    70%: 13.4%
    80%: 21.8%
    90%: 39.8%

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