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Forum: Group Administrators - Advanced Chat 24th May 2018, 11:10 AM
Replies: 24
Views: 1,334
Posted By TwiddlingThumbs
Yes, that's the correct link. You are correct...

Yes, that's the correct link. You are correct about the Genetic Distance Tool. Hopefully they fix it. Seems like FTDNA currently has a lot of fires to put out though.
Forum: Group Administrators - Advanced Chat 24th May 2018, 08:33 AM
Replies: 24
Views: 1,334
Posted By TwiddlingThumbs
You should still be able to use the GAP Genetic...

You should still be able to use the GAP Genetic Distance tool to see the genetic distance between one member and all other members who match or come close to matching (although some admins have...
Forum: Group Administrators - New and Begining Admins 22nd May 2018, 08:32 AM
Replies: 1
Views: 114
Posted By TwiddlingThumbs
Good question. I think these notifications...

Good question. I think these notifications started with the recent FTDNA website revisions. You can select which ones you receive by going to the My Account tab on your GAP page and selecting My...
Forum: Paternal Lineage (Y-DNA STR) Basics 22nd May 2018, 08:22 AM
Replies: 7
Views: 256
Posted By TwiddlingThumbs
There is a bit of work involved in initially...

There is a bit of work involved in initially setting up the group webpages. After that, probably not much work. You "can" do a lot of additional stuff like a pedigree page with the genealogy of...
Forum: Paternal Lineage (Y-DNA STR) Advanced 17th May 2018, 10:01 AM
Replies: 9
Views: 347
Posted By TwiddlingThumbs
Your TiP percentage hits 50% about 7 generations...

Your TiP percentage hits 50% about 7 generations ago, so that is the "best guess" for how long ago you have a common ancestor. But the margin of error is pretty huge. The TiP report also says there...
Forum: Group Administrators - Advanced Chat 16th May 2018, 03:37 PM
Replies: 24
Views: 1,334
Posted By TwiddlingThumbs
Based on a quick check, it looks like download is...

Based on a quick check, it looks like download is missing not only the private ones but also some that aren't private. The "Export to Spreadsheet" function on the GAP results page seems to have...
Forum: Group Administrators - Advanced Chat 16th May 2018, 02:10 PM
Replies: 24
Views: 1,334
Posted By TwiddlingThumbs
Any idea why FTDNA made it so Admins can't copy...

Any idea why FTDNA made it so Admins can't copy copy or download private results? Is it just to make it harder to share them with someone who is not an Admin?
Forum: Paternal Lineage (Y-DNA STR) Basics 16th May 2018, 11:05 AM
Replies: 10
Views: 533
Posted By TwiddlingThumbs
I took a 67 STR test a couple of years ago. It...

I took a 67 STR test a couple of years ago. It confirmed I was related to another Ashley who claimed descent from the the same ancestor born about 1675 and also confirmed that I was not related to...
Forum: Y-DNA Haplogroups & SNPs Basics 15th May 2018, 09:17 PM
Replies: 35
Views: 1,087
Posted By TwiddlingThumbs
I'd be interested in how many false matches you...

I'd be interested in how many false matches you have. The TiP probabilities for correct matches are not the issue. It's the false positives.
Forum: Y-DNA Haplogroups & SNPs Basics 15th May 2018, 03:34 PM
Replies: 35
Views: 1,087
Posted By TwiddlingThumbs
So you had no false matches at 37 markers? What...

So you had no false matches at 37 markers? What is your haplotype?
Forum: Y-DNA Haplogroups & SNPs Basics 15th May 2018, 10:23 AM
Replies: 35
Views: 1,087
Posted By TwiddlingThumbs
I think TiP probabilities are worse than a rough...

I think TiP probabilities are worse than a rough estimate. I think that for at least some haplotypes and at STR comparisons of less than 67, it consistently grossly overestimates the likelihood of...
Forum: Group Administrators - Advanced Chat 14th May 2018, 11:09 AM
Replies: 0
Views: 107
Posted By TwiddlingThumbs
Results downloading broken?

FTDNA's Y-DNA STR results downloading function for admins seems to have developed a number of problems:

1 - Only the Y-DNA Results download option seems to work; the Y-DNA Results Classic and...
Forum: Paternal Lineage (Y-DNA STR) Basics 8th May 2018, 04:36 PM
Replies: 2
Views: 238
Posted By TwiddlingThumbs
What's your genetic distance at 25 and 37? Must...

What's your genetic distance at 25 and 37? Must be very close to a match if you have a common ancestor born in 1606.
Forum: Paternal Lineage (Y-DNA STR) Basics 7th May 2018, 02:16 PM
Replies: 7
Views: 422
Posted By TwiddlingThumbs
Maybe you really are a robot! :eek:

Maybe you really are a robot! :eek:
Forum: Paternal Lineage (Y-DNA STR) Basics 5th May 2018, 09:49 AM
Replies: 5
Views: 315
Posted By TwiddlingThumbs
There are lots of false matches at 12 and 25,...

There are lots of false matches at 12 and 25, regardless of what TiP says. Only bother looking at the genetic distance and TiP at the highest number markers both people have tested at. In my case, I...
Forum: Paternal Lineage (Y-DNA STR) Advanced 29th April 2018, 10:33 AM
Replies: 14
Views: 879
Posted By TwiddlingThumbs
My take is that 67-marker STR testing is very...

My take is that 67-marker STR testing is very effective for placing surname project members into groups of men who share a common ancestor within the genealogical time frame. It's primary shortcoming...
Forum: Y-DNA Haplogroups & SNPs Basics 5th April 2018, 01:47 PM
Replies: 7
Views: 392
Posted By TwiddlingThumbs
The ISOGG website has a list of haplogroup...

The ISOGG website has a list of haplogroup prediction tools. See https://isogg.org/wiki/Y-DNA_tools
Forum: Paternal Lineage (Y-DNA STR) Basics 2nd April 2018, 09:11 AM
Replies: 11
Views: 806
Posted By TwiddlingThumbs
Well, we're all related. The only question is how...

Well, we're all related. The only question is how far back. A gd of 15 is a lot for 15-17 generations. Possible, but pretty unlikely.
Forum: Paternal Lineage (Y-DNA STR) Basics 1st April 2018, 10:38 AM
Replies: 3
Views: 366
Posted By TwiddlingThumbs
They can go either way. Not sure what you mean...

They can go either way.
Not sure what you mean by "oldest." Closest to that of the common ancestor? If so, the answer is no, the absolute number of STRs is not relevant; the key is the genetic...
Forum: Paternal Lineage (Y-DNA STR) Basics 14th March 2018, 01:00 PM
Replies: 12
Views: 1,192
Posted By TwiddlingThumbs
I think large kin groups tend to occur in Irish...

I think large kin groups tend to occur in Irish and Scottish clan-based surname projects. Projects based on occupational, locational, and physical characteristic surnames, on the other hand, tend to...
Forum: Paternal Lineage (Y-DNA STR) Basics 14th March 2018, 08:46 AM
Replies: 12
Views: 1,192
Posted By TwiddlingThumbs
There is already an FTDNA surname project that...

There is already an FTDNA surname project that includes Newcom, Newcomb, Newcombe, Newcome, Newsam, Newsham, Newsom, Newsome, Newson, Newstrom, Newsum. See:...
Forum: Paternal Lineage (Y-DNA STR) Basics 13th March 2018, 08:48 AM
Replies: 1
Views: 450
Posted By TwiddlingThumbs
L2 is upstream from FGC8158 and, based on the...

L2 is upstream from FGC8158 and, based on the estimated dates on YFull, both were formed over 4,000 years ago. So all that tells you is that you could be related in the surname period, but are quite...
Forum: Paternal Lineage (Y-DNA STR) Basics 10th March 2018, 08:00 AM
Replies: 1
Views: 441
Posted By TwiddlingThumbs
Did your matches only test 25 markers? If they...

Did your matches only test 25 markers? If they tested 37 or 67 markers and there is no match at that level, I would ignore the fact that they matched at 25 markers.

If your matches did not test 37...
Forum: Paternal Lineage (Y-DNA STR) Advanced 8th March 2018, 04:24 PM
Replies: 7
Views: 605
Posted By TwiddlingThumbs
I think some of the more sophisticated TMRCA...

I think some of the more sophisticated TMRCA algorithms do something like that, but you still just get a probabilistic answer with a very large confidence interval.
Forum: Paternal Lineage (Y-DNA STR) Advanced 8th March 2018, 03:45 PM
Replies: 7
Views: 605
Posted By TwiddlingThumbs
Based solely on the STR results (without SNPs or...

Based solely on the STR results (without SNPs or genealogy), there is no way to know if the match is a result of a lack of mutations (a true close relationship) or convergent or back mutations...
Showing results 1 to 25 of 129

 
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