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Louis Kessler (lkessler) Blog Comments

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Results 1 - 10 of 232 blog comments.   1097 blog entries.   218 forum posts.   1547 total.
1. 

Triangulation does NOT mean IBD - Blog comment by lkessler - 2 days ago

tewilso: What I can’t tell from your example is who is matching who. Unfortunately, and especially for smaller segments under 7 cM, chance matches can happen because the companies are comparing both parental chromosomes of one person with both parental chromosomes of another chromosome. And that is at ...
2. 

The GEDmatch Relationship Tree tool - Blog comment by lkessler - 26 Jan 2018

Joe: Send me an email.
3. 

The GEDmatch Relationship Tree tool - Blog comment by lkessler - 25 Jan 2018

Joe: We're just beginning see the development of good tools to analyze all this DNA stuff. GEDmach is doing a great job providing new ideas like this, and it's great when there's one that can help us make sense out this nonsense.
4. 

Revisiting Missing A-B Matches - Blog comment by lkessler - 19 Jan 2018

I guess I can say a week or two. Add another week to update the documentation and the website. Now remember I'm a programmer, so multiply that by 5 and add 3.
5. 

Sort of a Date - Blog comment by lkessler - 13 Jan 2018

Thank you eagle-eyed Tony for taking the time to let me know. Yes, you are correct. It should be BEF/TO before and FROM/BET/AFT that follow. I've now updated this blog post to reflect this. I checked my code in Behold, and it is implemented correctly. I just errored in this blog post.
6. 

Chess and Artificial Intelligence: The Future Changed Today - Blog comment by lkessler - 6 Dec 2017

Keith: I totally agree. But my wife is hopeful that Will Smith will save us.
7. 

Revisiting Speed and Balding - Blog comment by lkessler - 9 Nov 2017

Thanks, Debbie. I am now working with the help of your thoughts as well as those of Andrew Millard to try to statistically represent what Speed and Balding have simulated so as to better understand what their results represent. The constrained population is one thing (similar to a small version of Iceland over ...
8. 

Revisiting Speed and Balding - Blog comment by lkessler - 8 Nov 2017

Thank you Debbie for your analysis, but I'm still not convinced. You were correct on Facebook to say that the match filter would not affect results above 9 cM. So there must be some other reason why Speed and Balding give a greater than 20% chance that shared segments from 30 Mb to 40 Mb are from > 20 ...
9. 

Revisiting Speed and Balding - Blog comment by lkessler - 8 Nov 2017

Doug, (Professor Speed, Dr. Speed?) Thank you for your thorough response to my post. If I understand your explanation correctly, you are doing everything exactly the way it should be done. The one thing you don't mention is anything about filtering for only people who would show up in a person's DNA match ...
10. 

Revisiting Speed and Balding - Blog comment by lkessler - 8 Nov 2017

Jim, Thank you very much for your assessment. I too think that most of my segment matches (the ones that are valid) between 5 and 20 cM must be between 6 and 12 generations back since I have yet to identify any of them. But that's what endogamy with just a 5 generation genealogy does. I'm looking very ...