qplot {webbioc}R Documentation

Plot q-value Result Diagnostics

Description

Plots diagnostic graphs for the qvalue function.

Usage

qplot(qobj, rng=0.1)

Arguments

qobj a q-value object returned by the qvalue function
rng the range of q-values to be plotted

Value

Four plots:

Upper-left pi0.hat(lambda) versus lambda with a smoother
Upper-right q-values versus p-values
Lower-left number of significant tests per each q-value cut-off
Lower-right number of expected false positives versus number of significant tests

Author(s)

John D. Storey http://faculty.washington.edu/~jstorey/

References

Storey JD. (2002) A direct approach to false discovery rates. Journal of the Royal Statistical Society, Series B, 64: 479-498.


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