stoufferMethod {BLMA} | R Documentation |
Combine independent studies using the sum of p-values transformed into standard normal variables
stoufferMethod(x)
x |
is an array of independent p-values |
Considering a set of m independent significance tests, the resulted p-values are independent and uniformly distributed between 0 and 1 under the null hypothesis. Stouffer's method is similar to Fisher's method (fisherMethod), with the difference is that it uses the sum of p-values transformed into standard normal variables instead of the log product.
combined p-value
Tin Nguyen and Sorin Draghici
[1] S. Stouffer, E. Suchman, L. DeVinney, S. Star, and R. M. Williams. The American Soldier: Adjustment during army life, volume 1. Princeton University Press, Princeton, 1949.
x <- rep(0,10) stoufferMethod(x) x <- runif(10) stoufferMethod(x)