Yesterday, Louis Kessler released Double Match Triangulator 5.2, which is an update to the Windows autosomal DNA analysis tool. Version 5.2 consists mainly of bug fixes, with a few new changes/updates.
For a better explanation of just what this DNA genealogy software does, to quote his website:
DMT determines all the segment triangulations that two people share with some third person. DMT will help you determine the ancestral paths of your matches and put your people into clusters.
The results are given to you in Excel files with details for each match, and a summary of all people. You also get a file containing ancestral paths than can be uploaded to DNA Painter.
https://www.doublematchtriangulator.com/
You can download it here: https://www.doublematchtriangulator.com/
It requires Windows 7, 8, 10 or 11, and the unlicensed version of DMT is fully functional, but only displays chromosome 1. If you are a Mac user, and have Microsoft Excel (or a compatible program), you can still read the Excel (.xlsx) sheets that are produced.
| Double Match Triangulator 5.2 Changes |
| DMT now does one extra bit of painting. When two people triangulate with Person A and both have MRCAs that are not “R” and one is longer than the other, then the segment with shorter MRCA can be painted to one generation more along the line of the longer MRCA. That can be done because a valid segment cannot change parent part of the way through its match with Person A. |
| DMT now will retrieve the file information it needs from segment files that you may have open without giving an I/O error. |
| Fixed: GEDmatch files which have matches with people who have a null name (i.e. they weren’t assigned a name in GEDmatch and only have a kit number) would incorrectly become Person B if their first match occurs before the first Person B match in Person A’s file. |
| Fixed: The error message stating there was an invalid MRCA in the People file was listing the incorrect person. |
| Fixed: The error message stating “Min Triang cannot be larger than Min Single” sometimes incorrectly was appearing for some large values of Min Triang or Min Single. |
| Fixed: A couple of small memory leaks. |