04-06-2022, 11:28 PM
(04-06-2022, 04:18 PM)CelticBanshee3 Wrote: I have wondered why Ancestry updates and changes the results ever so often. Today my brothers DNA results show England & NW Europe - 44%, Scotland - 26%, Ireland - 24%, and Wales - 6%.
They update it often because they integrate new reference population datasets fairly often. More or different reference datasets will change the resulting analysis, making it finer grained. Occasionally, the data itself will be refined with error corrections and things like that, which may also slightly affect the resulting analysis.
An example of how changing the data file can change the results is this - Neither of my raw data files match the Cheddar Man, but the combined data file incorporating both does. My guess is that in each one, there were enough missing SNP's, "holes" in the data, that no match could be made, but by filling in the gaps with SNPs from the other data set for a more complete picture, that match could them be made.
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Diogenes was eating bread and lentils for supper. He was seen by the philosopher Aristippus, who lived comfortably by flattering the king.
Said Aristippus, ‘If you would learn to be subservient to the king you would not have to live on lentils.’ Said Diogenes, ‘Learn to live on lentils and you will not have to be subservient to the king.’
Said Aristippus, ‘If you would learn to be subservient to the king you would not have to live on lentils.’ Said Diogenes, ‘Learn to live on lentils and you will not have to be subservient to the king.’