alpha.power: Find the p-value threshold that gives a specified average...

Description Usage Arguments Value References Examples

View source: R/fdr-sampsize-v1.0e.R

Description

Find p-value cut-off that yields desired average power given n and effect size

Usage

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alpha.power (ave.pow, n, pow.func, eff.size, null.effect, tol = 1e-06, 
    ...) 

Arguments

ave.pow

desired average power (scalar)

n

sample size

pow.func

name of R function to compute statistical power

eff.size

effect size vector

null.effect

value of effect size that corresponds to null hypothesis

tol

tolerance for bisection solution to alpha

...

additional agruments for the functions

Value

a list with the following components:

alpha

desired value of alpha

ave.pow

average power at that alpha

References

A Onar-Thomas, S Pounds. "FDRsampsize: An R package to Perform Generalized Power and Sample Size Calculations for Planning Studies that use the False Discovery Rate to Measure Significance", Manuscript 2015. Pounds, Stan, and Cheng Cheng. "Sample size determination for the false discovery rate." Bioinformatics 21.23 (2005): 4263-4271.

Jung, Sin-Ho. "Sample size for FDR-control in microarray data analysis." Bioinformatics 21.14 (2005): 3097-3104.

Examples

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 alpha.power(ave.pow=0.8,n=50,pow.func=power.twosampt,
             eff.size=rep(0:1,c(900,100)),null.effect=0)
 

FDRsampsize documentation built on May 2, 2019, 9:14 a.m.