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  • A-static calculation

    Hi,

    I have a problem that I can't find a solution anywhere.

    In hawkeye (assembly visualisation sofware of Amos), we can see a graphic of "coverage stat" that correspond to the A-statistic calculation. I want to calculate this statistic in all points of the contig like in this softwtare.

    I finded a PDF in internet that explaine how to calculate it:

    A-statistic : Model the "arrival" of reads along the length of a unitig as a Poisson process:
    G: length of genome
    N: total number of reads
    k: number of reads in the unitig
    D : the distance between the start of the rst read to the start of the
    kth read

    A-statistic = DN/G log (e) - k log (2)

    Anyway, I can't applicate it in differents points of contig so that I can have a graphic.

    Can you to give me some explination or example to calculate it?

    Thank you very much
    Last edited by hicham; 02-08-2010, 05:15 AM.

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