Author Topic: Custom Clustering from Ancestry  (Read 1016 times)

Offline ikas

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Custom Clustering from Ancestry
« on: Friday 17 October 25 11:55 BST (UK) »
Diahan Southard says on her blog that Ancestry are rolling out a custom clustering tool to ProTools account holders and her account has been updated. It is additional to the clustering tool it has already rolled out. Anyone else got it and tried it out?

https://my.yourdnaguide.com/c/diahan-s-corner/ancestry-s-custom-clusters

Online Biggles50

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Re: Custom Clustering from Ancestry
« Reply #1 on: Friday 17 October 25 12:11 BST (UK) »
Diahan Southard says on her blog that Ancestry are rolling out a custom clustering tool to ProTools account holders and her account has been updated. It is additional to the clustering tool it has already rolled out. Anyone else got it and tried it out?

https://my.yourdnaguide.com/c/diahan-s-corner/ancestry-s-custom-clusters

She knows her stuff.

Alas the link does not work for me I get “this is a private space”, members only.

It will be available via the additional Subscription to Pro Tools and is expected to be live by the end of October.

Dana Leeds explains the current system here.

https://www.youtube.com/watch?v=Wg2RTuaU5mw

Offline ikas

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Re: Custom Clustering from Ancestry
« Reply #2 on: Friday 17 October 25 13:24 BST (UK) »
Sorry Biggles about the link. I am on her mailing list so I guess that is why it works for me. She has not tried it yet so vid not very informative. Link below is about custom clustering.

https://support.ancestry.co.uk/s/article/Custom-Match-Clusters

Online Biggles50

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Re: Custom Clustering from Ancestry
« Reply #3 on: Friday 17 October 25 13:59 BST (UK) »
Clustering and using Ancestry’s Enhanced Shared Matching feature does potentially look very interesting.

The range of 20+cM that is quoted in the Article does cover a host of relationship possibilities.

Hopefully in time this will help me to tie down who my Great Great Grandfather actually was where at present he is a bit of a semi educated guess, we know his name but there are a few possibles and so far inconclusive links with the tools that I have.


Offline ikas

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Re: Custom Clustering from Ancestry
« Reply #4 on: Friday 17 October 25 14:47 BST (UK) »
Yes, I'm hopeful too. Cluster analysis has not helped me in the past and the ancestry clusters look far too clean. I suspect they have dropped a lot of matches to get those sharply defined clusters. I am hoping that being able to select the matches to cluster might be helpful but of course I need to see it in action. I am too busy to try pro tools at the moment but I am planning to have shot early next year.

Offline Glen in Tinsel Kni

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Re: Custom Clustering from Ancestry
« Reply #5 on: Friday 17 October 25 19:10 BST (UK) »
I've got it but it's not making much sense right now. You can create up to 25 custom cluster 'reports' for want of a better description which expire after a month. Each 'report' can have multiple clusters but I'm struggling to make much sense of it right now.

I have one match at 168cM who doesn't make it into standard clusters but has 4 custom clusters with a small unknown match, the custom clusters contain 8,9,8 and 43 matches, the names in the first 3 are just different permutations of the same 9 people.

Offline ikas

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Re: Custom Clustering from Ancestry
« Reply #6 on: Saturday 18 October 25 08:21 BST (UK) »
Interesting Glen. I see Gedmatch have also announced a new Tier 1 tool. Launch webinar October 30th. Evert Jan-Blom speaking at the launch. I'll be watching that one.

"Building on the proven AutoSegment clustering method, this new tool doesn't just group your DNA matches—it actually partitions your DNA segments into parental sides AND provides admixture results for each segment on every chromosome."

Offline David Nicoll

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Re: Custom Clustering from Ancestry
« Reply #7 on: Saturday 18 October 25 14:57 BST (UK) »
Well, a bit underwhelming.

More complicated to use than the MyHeritage clustering.
The Standard Cluster seems fairly pointless, as it really just gives close relatives.
The Custom Clusters are more powerful, they do let you see how your matches are related to each other, it simplifies what is otherwise a laborious manual process.

I have a large group of related people in Kentucky who seem to link back to a common ancestor in Lincolnshire, but has not generated any blinding revelations yet.

I have manually generated most of this cluster, and it is much bigger 130 or so versus the 20 odds that the Cluster settings allow you to see. The critical linking people between clusters often seem to be in the 10 to 20 cM range as far as I can see, unless you are very lucky.

They say that the clusters stick if they are associated with a group, not sure that is working, especially if you have pre-existing clustering.

The big benefit so far is the fact that it generates a nice picture and an easy to read list of people in a group, also that you can seem to be able to cut and paste the cluster into a word processor or excel. Libre Calc does not seem to work properly for some reason

Warning - note down who you have selected as the seed people for the cluster. You cannot edit the cM settings, or seed people and have to start from scratch each time.
 
Nicoll, Small - Scotland Dennis - Lincolnshire, Baldwin - Notts. Gordon, Fletcher Deeside

Offline stonechat

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Re: Custom Clustering from Ancestry
« Reply #8 on: Monday 20 October 25 13:50 BST (UK) »
I have the pro tools

At present the cluster tool cannot work for me so was hoping the custom would.
Don’t have the custom clustering yet
Douglas, Varnden, Joy(i)ce Surrey, Clarke Northants/Hunts, Pullen Worcs/Herefords, Holmes Birmingham/USA/Canada/Australia, Jackson Cheshire/Yorkshire, Lomas Cheshire, Lee Yorkshire, Cocks Lancashire, Leah Cheshire, Cook Yorkshire, Catlow Lancashire
See my website http://www.cotswan.com