getfx2: Internal functions for 'nicqTest'.

In nivm: Noninferiority Tests with Variable Margins

Description

Usually not directly called, called by nicqTest.

Usage

getfx2(i, n1, n2, g, slowint = FALSE, mint = 100, interr = 10^-3)
nicqCalc(X2T1i,g,i0,n1,n2,delta0=.10,q0=.20,
    conf.int=TRUE,
    conf.level=0.95,
    conf.sided=c("two.sided","one.sided"), alternative="less",
    control=nicqControl())

nicqGetpvalue(X2T1i,n1,n2,g,i0,alternative="less",
control=nicqControl())

Arguments

i	ic value
n1	number in control group
n2	number in test group
g	function
slowint	logical, if true use built-in integrate function. But this is slower.
mint	number of trapizoids for calculation with slowint=FALSE
interr	tolerance for integration

Details

The function getfx2 gets probability mass function for x2=number of failures in the test group at or before the ith failure in the control group. Uses very simple numeric integration (slowint=FALSE) that just adds mint trapazoids (rectangles with triangle tops).

Value

vector of probabilities for all possible x2 values, forced to sum to 1.

nivm documentation built on May 2, 2019, 8:22 a.m.