pi.star {FDRsampsize}

Compute the anticipated null proportion estimate

Description

Compute an approximation of the expected value of the null proportion estimate given the sample size and effect size.

Usage

pi.star (n, pow.func, eff.size, lam = 0.95, eps = 1e-04, ...) 

Arguments

n

sample size

pow.func

an R function to compute statistical power

eff.size

effect size vector

lam

p-value at which to numerically evaluate p-value pdf (scalar)

eps

epsilon for numerical differentiation

...

additional agruments for the functions

Value

scalar value for approximated E(pi.hat)

References

#> Pounds, Stan, and Cheng Cheng. "Sample size determination for the false discovery rate." Bioinformatics 21.23 (2005): 4263-4271.