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GEDmatch: A free website to compare and analyze your DNA results

GEDmatch.com is a tremendous free membership website for analyzing your DNA data. Although I have previously blogged about the terrific ancestry composition tools at GEDmatch, I never did a step by step tutorial.
GEDmatchLarge

So I am pleased to announce that Barton Lewis from the DNA-NEWBIE list has contributed the documentation he wrote for his family to the downloads area of this website. Thank you Barton!

I added lots of pictures and we worked together on the presentation and wording. Let us know if you find it useful and what else we should add to it.

What to do at the GEDmatch site

A DNA cousin who just uploaded his ftDNA results to GEDmatch asked me what he could do with them, so I decided to write a blog post to answer this question. Here are my favorite things to do there:

  • make pretty pictures of your populations ancestry – called the Ad-Mix page
    (see more on that below)
  • get a list of possible relatives who have tested with other companies as well as the one you tested with, that is the “One to Many” option on your home page. Email addresses are shown but you cannot just click on them, you can cut and paste the first part but then you have to retype the ISP  (prevents spam)
  • look at a specific area of one chromosome to see who else matches you there – “Find people who match
    with you on a specified segment”
  • compare your GEDcom to one other to see of you can find that elusive MRCA
  • compare your GEDcom to all your DNA matches that have uploaded GEDCOM files

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GEDmatch: a wonderful tool

One of the best tools around for genetic genealogy is the GEDmatch site which allows you to upload your raw data from whatever service you used and compare it to everyone’s data at GEDmatch in many different ways. But my favorite tool is the pretty pictures of your ancestry mixtures (called admixtures). Here is mine using the Eurogenes K12 calculator which seems best for us Northern/Scandinavian folk:

 



What does it all mean? A discussion of these populations is here at the Eurogenes blog.

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