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Geno 2.0 data file size ???

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  • Geno 2.0 data file size ???

    My Geno 2.0 data file size is 737 KB. My FTDNA autosomal data file size is 7568 KB. My FTDNA x chromosome data file size is 191 KB. If the files contain similiar information why is the Geno 2.0 so small?

  • #2
    Are you looking at the file size for the file you downloaded from the site, or the unzipped file?

    NGS has "zipped" the file, to make it smaller (as a way to make it easier on their servers to download the information).

    There are currently two versions of the uncompressed Geno download. The original download was quite a bit larger, and some data in it apparently caused an issue (and downloads were unavailable for some for almost a week). When they "fixed" the issue, they also trimmed back much of the file size (which has caused its own issues for people looking at the mt-DNA data).

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    • #3
      Originally posted by rdegnen View Post
      My Geno 2.0 data file size is 737 KB. My FTDNA autosomal data file size is 7568 KB. My FTDNA x chromosome data file size is 191 KB. If the files contain similiar information why is the Geno 2.0 so small?
      Geno 2.0 covers 130K autosomal SNP's plus a much smaller menu of Y and Mt SNP's, in all, just a fraction of the hundreds of thousand autosomal SNP's covered by FTDNA FF.

      Geno 2.0's autosomal SNP's were chosen to yield "similiar information" as FF only as regards deep ancestry.

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      • #4
        All GZ files

        The FTDNA and Geno2.0 are both GZ files. The Geno 2.0 were downloaded 12/18/2012.

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