Showing posts with label Amounts. Show all posts
Showing posts with label Amounts. Show all posts

Wednesday, March 22, 2017

Attempt at comparing MyHeritage test amounts onsite to MyHeritage test Uploads at GEDmatch


I have been curious to compare how my matches at MyHeritage show up(amount-wise) when they are uploaded to GEDmatch.  Today I noticed that I had  three new matches from MyHeritage at GEDmatch in addition to one that I'd had for about a week.  Uploaded MyHeritage kit are those identified by a prefix of the letter H.  That gave me a total of 4 matches to compare the reported amounts from MyHeritage to the matching amount at GEDmatch.  Sadly, I was only able to positively identify one of the matches.  I could not find the other 3 matches among my 89 matches at MyHeritage.  I did a scan of all nine pages and when that didn't result in me finding any of the 3 matches  I did a search for the full names and email user names.  Still nothing.  So then I looked up to the amount shown at GEDmatch + 10cMs nothing that looked like a match despite the fact that most of the users appeared to have used their full name.

Below are the amounts from GEDmatch and the comparison with the one match I was able to identify.  



Below is a screenshot of the last two matches on my My Heritage DNA matches.  They were sorted from Greatest Total Amount to smallest.  Why are matches 2, 3 and 4 not listed?  Is the Total Matching Theshold to make the list 15 cMs?  Smallest amount to be considered a segment match 5 cMs?

More questions than answers.  I did check the DNA Match quality info button, as well as the DNA help files to see if I could find the answer to the above questions but did not see anything listing what the cutoff amounts were to be listed, nor the minimum amount of cMs to be considered a matching segment.  I'll post an update if I figure out the answers. Comments are always welcome.


Sunday, February 05, 2017

Google Sheets for Collaborating and Visual Presentation of DNA Matches


When I am working with an adoptee or with any researcher to help them "see" their DNA matches and to get a handle on the amounts each one matches, possible relationships and groupings,  I've found that the Office Documents at Google are great.  I use the Spreadsheet for DNA matches.This is really just an adaptation of the technique I use when working with the information from my AncestryDNA Circles which I blogged about in my post from August 2016.  (Click below to get a better look--I have edited out the usernames and GEDmatch numbers to protect the privacy of those in the spreadsheet shown below )



I keep a template of this sheet and just make a copy when I need one to work with for another researcher.  You can adapt this to fit your needs but this is what works for me and seems to be the easiest to understand.  If you are working on your own matches you can start making the sheet...if not you will need to get the person to send you a share link to the DNA account with which you will be working.  If they don't know how to do that I have a blog post that I wrote about Sending a Share link to AncestryDNA test results.  Feel free to share that link with them if they need instructions on how to do that.  Also if they aren't at GEDmatch you might also want to refer them to the Upload to GEDmatch post.

1st Column =  Ancestry Matches User Name(or any username if you are adding those from another site)
2nd Column =  cM amount/  # of segments
3rd Column = Possible relationships--keeps you from having to constantly check chart)
There are many charts but I consult the ones at the shared cM project page.
4th Column = GEDmatch numbers--helps you to see who is already at GEDmatch and who it would benefit you the most to ask if they will consider uploading.
5th Column = Notes section--I put common surnames and notes on any patterns I see emerging in this section.
6th Column = ICW/Shared --you can use this section to color code groupings with the fill color feature if you want.  If you know the grandparent you could put PGF MGM etc. here.  You may not need this if you choose to color the entire rows for the groups.  I just have an alternating color applied here so I can read across the row without losing my place.  But coloring the entire row will work if you can to use a different color for each group of shared or ICW matches.

Once your spreadsheet is formatted to your liking, visit the DNA Insight page of the test you will be working with and click on See All Matches From the main match consult each match's page and click on the "i" to collect the amount of shared cMs for each matches you want to catalog.  Typically I only do this with an adoptee's matches that are 50+ cMs.  Also look at the shared matches and start filling in info if you notice any patterns of surnames.  Go ahead do this now while you are at their page.

Once you have the spreadsheet set up click on the SHARE button in the upper right and enter the email(s) of anyone who is going to be helping or observing and set their permissions.  They may view, comment or edit.

If you find this helpful, please share.  Also if you have ideas or comments I'd love to hear those as well.