R/Cox.Equality.R

In TrialSize: R Functions for Chapter 3,4,6,7,9,10,11,12,14,15 of Sample Size Calculation in Clinical Research

Defines functions Cox.Equality

Documented in Cox.Equality

Cox.Equality <-function(alpha,beta,loghr,p1,d){
    p2=1-p1
    n=(qnorm(1-alpha/2)+qnorm(1-beta))^2/(loghr^2*p1*p2*d)
    return(n)
}

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