ORCI (version 1.1)

Cornfieldexact.CI: Compute Cornfield exact confidence interval for the odds ratio

Description

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

Usage

Cornfieldexact.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.

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.

Examples

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

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