Good Afternoon Patricia:
Please note the discussion of the bin scheme in this paper:
http://genome.cshlp.org/content/12/6/996.full
"The Human Genome Browser at UCSC", W. James Kent, et. al
Genome Research 2002 12:996-1006
Figure 7:
http://genome.cshlp.org/content/12/6/996/F7.expansion.html
The binning scheme has been expanded since then to allow the top
level bin to accommodate a region size of 4 gigabases. The smallest
bin at the bottom accounts for a region size of 128 kilobases.
The bin is a simple calculation give the start,end coordinates
of an item. See also, the test script in the kent source tree:
src/hg/lib/tests/binTest.sh
--Hiram
Patricia Klein wrote:
> In the refGene table schema for the human, mouse and rat data sets,
> the first entry is something called bin. I see that the bin is just
> an indexing field to speed chromosome range queries but can you tell
> me how these are assigned to the genes in the table.
>
> Patricia
>
> Dr. Patricia Klein
> Associate Professor
> Institute for Plant Genomics and Biotechnology
> TAMU 2123
> Texas AgriLIFE Research
> Texas A&M University
> College Station, TX 77843-2123
>
> phone: 979-862-6308
> fax: 979-862-4790
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