Cornfieldmidp.CI: Compute Cornfield midp confidence interval for the odds ratio

In ORCI: Several confidence intervals for the odds ratio

Description

Compute Cornfield midp confidence interval for the odds ratio of two independent binomial proportions.

Usage

Cornfieldmidp.CI(x1, n1, x2, n2, conf = 0.95, interval = c(1e-08, 1e+08))

Arguments

x1	number of events in group 1.
n1	number of trials in group 1.
x2	number of events in group 2.
n2	number of trials in group 2.
conf	confidence level.
interval	solution finding range.

Author(s)

Libo Sun

References

Cornfield, J. (1956). A statistical problem arising from retrospective studies. In Proceedings of the third Berkeley symposium on mathematical statistics and probability, volume 4, pages 135-148. University of California Press Berkeley.

Lancaster, H. (1961). Significance tests in discrete distributions. Jornal of the American Statistical Association, 56(294):223-234.

Examples

# x1=2, n1=14, x2=1, n2=11
# 95% confidence interval for the odds ratio 

Cornfieldmidp.CI(2, 14, 1, 11)

Example output

[1]  0.1102018 53.7898565

ORCI documentation built on May 2, 2019, 10:58 a.m.