Description Usage Arguments Value References
The non-central chi-square approximation is based on the Liu method.
1 | liu.pwr(alpha, lambda, delta)
|
alpha |
significance level |
lambda |
vector of mixing coefficients |
delta |
vector of non-centrality parameters |
estimated power
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.
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