zstatRiskRatio {lrstat}

Miettinen-Nurminen score test statistic for two-sample risk ratio

Description

Obtains the Miettinen-Nurminen score test statistic for two-sample risk ratio possibly with stratification.

Usage

zstatRiskRatio(
  riskRatioH0 = 1,
  n1 = NA_real_,
  y1 = NA_real_,
  n2 = NA_real_,
  y2 = NA_real_
)

Arguments

riskRatioH0

The risk ratio under the null hypothesis. Defaults to 1.

n1

The sample size for the active treatment group.

y1

The number of responses for the active treatment group.

n2

The sample size for the control group.

y2

The number of responses for the control group.

Details

The Mantel-Haenszel sample size weights are used for stratified samples.

Value

The value of the score test statistic.

Author(s)

Kaifeng Lu, [e-mail]

Examples

zstatRiskRatio(riskRatioH0 = 1, n1 = c(10,10), y1 = c(4,3),
               n2 = c(20,10), y2 = c(2,0))