ORCI (version 1.1)

BPmidp.CI: Compute Baptista-Pike midp confidence interval for the odds ratio

Description

Compute Baptista-Pike midp confidence interval for the odds ratio of two independent binomial proportions.

Usage

BPmidp.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

Baptista, J. and Pike, M. (1977) Exact two-sided confidence limits for the odds ratio in a 2x2 table. Journal of the Royal Statistical Society. Series C (Applied Statistics), 26(2):214-220.

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 

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