RootsChat.Com
General => Ancestral Family Tree DNA Testing => Topic started by: Cavanaghs on Monday 27 July 20 11:54 BST (UK)
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I can see how many 4th cousins + I have, but I want to know the total number of matches I have.
Or is this information not available?
Thanks for your help.
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Click the Shared DNA button :).
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I did a snip!
Remember that the number will grew. Also it will shrink from August when the 8cM cut off will be introduced.
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Thank you Gadget! My eyes must have just scanned past that a million times! I actually want to check how many matches I lose in August. Am currently frantically trying to save as many of the 6-7cM matches as possible!
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I actually want to check how many matches I lose in August. Am currently frantically trying to save as many of the 6-7cM matches as possible!
I don't think that you can do that easily. If you enter cM range, you'll get them all listed but since they've moved from pages (was it 50 per page) to an infinite listing, it's impossible without counting them one by one :-\
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I search by surname or surname+county etc to limit the results..
Incredibly time consuming but I put in an hour here and there. A drop in the ocean I know.
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I think ancestry could have made this change more intelligently. Clearly people who have already attributed many tiny matches are using them. Brand new customers with tiny trees clearly don't need to have all those mini matches constantly searched through. I feel robbed.
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I checked that all my common ancestors were colour coded.I've also been colour coding those with public trees with over 50 people. That will miss quite few but .......
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I also have been trying to do this gadget...for the last couple of days all I get is-
Our backend services are overtaxed at the moment and we are unable to retrieve all your matches. We apologize for the inconvenience, please try again later.
I suppose everyone else is trying too!! We just need them to give a free weekend and then we will be totally stuffed ::)
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I thought that these very small matches were being removed because they’re more than likely to be false positives?
Certainly hardly any of them have any shared matches.
Romilly.
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They can be very important, Romilly. I have quite a lot of (proven) common ancestors with them.
Ancestry only shows shared matches if they are 20cMs or more.
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Funnily enough, I do have some matches on Ancestry for quite low cMs that do have shared matches. (They tend to be the Ashkenazi Jewish ones, but I don’t know why this is).
Romilly.
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It would be when your shared match shares more than 20cM with one of your 6cM matches. I've tried to show an example below
-------------- You----------------
l l
over 20cM less than 20cM
l l
shared matchA-----more than 20cM-------shared matchB
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I thought that these very small matches were being removed because they’re more than likely to be false positives?
Certainly hardly any of them have any shared matches.
Romilly.
Actually many of them do, but as Gadget says, they hide anything where they match another one of your matches less than 20cM. Ancestry hides a lot of useful data, which is why people started using the Genetic Affairs and Shared Clustering in the first place ::).
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Why then does Blaine Bettinger describe these small matches as 'poison'?
I've found his book on DNA testing really helpful...
Romilly.
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Why then does Blaine Bettinger describe these small matches as 'poison'?
I've found his book on DNA testing really helpful...
Romilly.
Because for people who know very little of their tree, they probably are, because you have no idea where they fit in. But for people that have very extensive trees going back to the 17th century and beyond on most or all lines, they can be very useful and can be verified to be genuine links to multiple people descended from a common ancestor.
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Yes melba_schmelba,
I know that you and Gadget have made valid points...
I am just so frustrated with DNA!!!
Despite having tested with multiple companies, and having persuaded my late Mother, my sister, and paternal and maternal 1st Cousins to also test, - and having read widely on the subject...
I'm still stuck with my Paternal Grandfather:-(
I'm on the verge of deleting everything and giving up altogether...
Romilly :'(
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Don't give up Romilly, just take a break, you never know what might turn up.
I don't doubt Blaine Bettinger's credentials and would like to read his book but a lot of the research he references also relates to matches of 5cM, even 2cM, not to the 6cM and 7cM matches that will be deleted at ancestry.
I accept many of these 6-7cM matches are "noise" but from what he says, perhaps as much as 50% of them are genuine matches, that's many tens of thousands of my matches that will be deleted, to my detriment. At the moment, I can choose to ignore the many irrelevant matches and cherry pick the interesting ones. Soon the interesting ones will not be accessible.
I also don't accept that matches of 6-7cM are extremely distant matches. I have 9 known matches of 6-7cM and my mother has 14, that I can attribute to precise ancestors - mostly my 3 x or 4 x grandparents. Many of these small matches had family trees that overlapped with mine in a clear way. No ambiguity.
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Thanks for the encouragement, Cavanaughs.
Yes, we all need a break from time to time, I agree.
I was determined to finally crack this during lockdown, - and probably spent too long looking...
Btw, what has happened to GEDMatch? I can't get on there anymore!
Romilly.
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Also no access to gedmatch on my side.. first time I've tried since they had issues..
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Also no access to gedmatch on my side.. first time I've tried since they had issues..
I tried a couple of days ago and it was back up, didn't see any abnormality in matches. Presumably discovered some other vulnerability in the site and taken down again?
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It was back up, because I was wondering whether I should delete mine.
Perhaps I left it too late, and should have done it while I could?
Romilly.