stat.soft {TFisher}

Construct soft-thresholding Fisher's p-value combination statistic.

Description

Construct soft-thresholding Fisher's p-value combination statistic.

Usage

stat.soft(p, tau1)

Arguments

p

- input p-values.

tau1

- truncation parameter=normalization parameter. tau1 > 0.

Details

Let p_{i}, i = 1,...,n be a sequence of p-values, the soft-thresholding statistic

Soft = \sum_{i=1}^n -2\log(p_i/\tau_1)I(p_i\leq\tau_1)

. Soft-thresholding is the special case of TFisher when tau1=tau2.

Value

Soft-thresholding Fisher's p-value combination statistic.

References

1. Hong Zhang and Zheyang Wu. "TFisher Tests: Optimal and Adaptive Thresholding for Combining p-Values", submitted.

Examples

pval <- runif(100)
stat.soft(p=pval, tau1=0.05)