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Thread: BH, why this threshold ?

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    BH, why this threshold ?



    Hello,

    I have a theoretic question. When using the BH procedure for controlling the false discovery rate, we compare the p values in this way:

    P(i)<=t*(i/m)

    where i is the test sorted by the p values, and m is the number of hypotheses done.

    I don't understand the logic behind this size that we compare the p values to. For example, in Bonferonni, the logic is clear. If you have 10 tests, divide rejection threshold by 10, it's very intuitive. In BH's case, I don't get the intuition behind it. Can anyone explain it in a simple way ?

    Thanks !

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    RotParaTon
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    Re: BH, why this threshold ?


    Have you read the original paper? I believe there is some intuition given in the paper. I could probably give some more details if you have a hard time getting the intuition from the paper but at the moment I'm too lazy (hey - at least I'm honest).
    "His programming is malfunctioning. It begins! Get your weapons, he's going to become a killbot!!!" - bryangoodrich

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