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Color me confused HELP

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  • Color me confused HELP

    Perhaps I can get some assistance here. My results have just come and and it raises some questions.

    First off the other person I had tested who is a posited 1st Cousin 1XR is not listed in matches, which isn't all too surprising since paternity is a possible issue. But when I run the raw data from both of us at http://www.math.mun.ca/ David Pike's comparison site we see several single segment matches on several chromosomes.

    I have also uploaded both to GEDMATCH but it's taking forever to tokenize and get a one to one comparison.

    Secondly in the matches surname lists there are several bolded surnames which, if I am understanding correctly, means they are supposed to match the surnames in my list. Yet they don't. So why are they bolded?

    Any help is appreciate

    Chr 1 has a Single Segment Match of length 555 from position 39258674 to position 41850182 ( 2.59 Mb)
    Chr 1 has a Single Segment Match of length 505 from position 79501129 to position 81489305 ( 1.99 Mb)
    Chr 1 has a Single Segment Match of length 679 from position 99800813 to position 102285043 ( 2.48 Mb) (1 non-matching SNPs treated as matching)
    Chr 1 has a Single Segment Match of length 520 from position 119751002 to position 146981725 ( 27.23 Mb)
    Chr 2 has a Single Segment Match of length 511 from position 17341195 to position 19262669 ( 1.92 Mb)
    Chr 2 has a Single Segment Match of length 510 from position 52939115 to position 54723946 ( 1.78 Mb) (1 non-matching SNPs treated as matching)
    Chr 2 has a Single Segment Match of length 608 from position 138011809 to position 140821180 ( 2.81 Mb) (1 non-matching SNPs treated as matching)
    Chr 2 has a Single Segment Match of length 527 from position 195968050 to position 198978661 ( 3.01 Mb)
    Chr 3 has a Single Segment Match of length 563 from position 39428241 to position 42076622 ( 2.65 Mb) (1 non-matching SNPs treated as matching)
    Chr 3 has a Single Segment Match of length 565 from position 49924424 to position 53551902 ( 3.63 Mb)
    Chr 3 has a Single Segment Match of length 511 from position 66866536 to position 68959007 ( 2.09 Mb) (1 non-matching SNPs treated as matching)
    Chr 3 has a Single Segment Match of length 733 from position 118581688 to position 121806825 ( 3.23 Mb)
    Chr 6 has a Single Segment Match of length 990 from position 31461966 to position 32213052 ( 0.75 Mb) (1 non-matching SNPs treated as matching)
    Chr 6 has a Single Segment Match of length 624 from position 32835258 to position 33349885 ( 0.51 Mb) (1 non-matching SNPs treated as matching)
    Chr 6 has a Single Segment Match of length 725 from position 75962890 to position 79979927 ( 4.02 Mb)
    Chr 7 has a Single Segment Match of length 612 from position 98788589 to position 101116218 ( 2.33 Mb)
    Chr 7 has a Single Segment Match of length 503 from position 102025660 to position 104181530 ( 2.16 Mb) (1 non-matching SNPs treated as matching)
    Chr 7 has a Single Segment Match of length 550 from position 138498772 to position 140067576 ( 1.57 Mb)
    Chr 9 has a Single Segment Match of length 664 from position 86770003 to position 89031729 ( 2.26 Mb) (1 non-matching SNPs treated as matching)
    Chr 9 has a Single Segment Match of length 637 from position 107013530 to position 109166421 ( 2.15 Mb)
    Chr 10 has a Single Segment Match of length 531 from position 32214122 to position 34161499 ( 1.95 Mb) (1 non-matching SNPs treated as matching)
    Chr 10 has a Single Segment Match of length 567 from position 84433391 to position 86421486 ( 1.99 Mb) (1 non-matching SNPs treated as matching)
    Chr 11 has a Single Segment Match of length 555 from position 47922672 to position 56481768 ( 8.56 Mb)
    Chr 12 has a Single Segment Match of length 728 from position 9424308 to position 12007920 ( 2.58 Mb)
    Chr 13 has a Single Segment Match of length 607 from position 70444358 to position 72522820 ( 2.08 Mb) (1 non-matching SNPs treated as matching)
    Chr 14 has a Single Segment Match of length 722 from position 35941568 to position 39317229 ( 3.38 Mb) (1 non-matching SNPs treated as matching)
    Chr 15 has a Single Segment Match of length 583 from position 25793489 to position 27268034 ( 1.47 Mb) (1 non-matching SNPs treated as matching)
    Chr 15 has a Single Segment Match of length 529 from position 42950297 to position 46009403 ( 3.06 Mb) (1 non-matching SNPs treated as matching)
    Chr 15 has a Single Segment Match of length 503 from position 70784425 to position 73302841 ( 2.52 Mb)
    Chr 17 has a Single Segment Match of length 617 from position 39096618 to position 41952807 ( 2.86 Mb)
    Chr 18 has a Single Segment Match of length 565 from position 13640802 to position 21078716 ( 7.44 Mb)
    Chr 18 has a Single Segment Match of length 1331 from position 39819531 to position 45120340 ( 5.30 Mb)
    Chr 20 has a Single Segment Match of length 762 from position 25256598 to position 33565755 ( 8.31 Mb) (1 non-matching SNPs treated as matching)
    Total Mb: 122.65

  • #2
    I'm not familiar with David Pike's program, so I can't respond to that. However, FTDNA uses a phonetic algorithm that tries to estimate similar sounding or spelling names, maybe they start with the same letter or are similar in size. It's just a estimate to take into account that spellings change over time. There is an odd word starting with an A that refers to it, but I think it's also called Soundex.

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    • #3
      Originally posted by Serket View Post
      FTDNA uses a phonetic algorithm that tries to estimate similar sounding or spelling names, maybe they start with the same letter or are similar in size. It's just a estimate to take into account that spellings change over time. There is an odd word starting with an A that refers to it, but I think it's also called Soundex.
      Soundex is the correct term. There are several different Soundex systems, and FTDNA uses American Soundex:

      http://www.archives.gov/research/census/soundex.html

      With this system, you'll definitely get some names that are different from your names, but they do have the same soundex code.

      Elise

      PS. For those in the U.S., look at your driver's license. I'm not sure if all states do this, but you may find the soundex code for your surname as the first few characters of your DL number
      Last edited by efgen; 12 August 2014, 02:56 PM.

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