liu.pwr: Compute power for SKAT (given chi-square mixture parameters)...

Description Usage Arguments Value References

View source: R/sp.R

Description

The non-central chi-square approximation is based on the Liu method.

Usage

1
liu.pwr(alpha, lambda, delta)

Arguments

alpha

significance level

lambda

vector of mixing coefficients

delta

vector of non-centrality parameters

Value

estimated power

References

Wu,B. and Pankow,J.S. (2016) On sample size and power calculation for variant set-based association tests. /AHG/, 80(2), 136-143.

Wu,B. and Pankow,J.S. (2017) On computing the tail probability of non-negative definite quadratic forms in central normal variables. tech rep.

H. Liu, Y. Tang, H.H. Zhang (2009) A new chi-square approximation to the distribution of non-negative definite quadratic forms in non-central normal variables, Computational Statistics and Data Analysis, 53, 853-856.


baolinwu/KATSP documentation built on May 29, 2019, 12:04 p.m.