Confidence interval for population size (N) in hypergeometric distribution.

Source: R/CIDists.R

Computes a confidence interval for population size (N) in hypergeometric distribution.

hyperCI(M, n, m, conf.level = 0.95)

Arguments

M

Number of successes in the population.
n

Number of observations in the sample.
m

Number of observed successes in the sample.
conf.level

Level of confidence to use for constructing confidence intervals (default is 0.95).

Value

A 1x2 matrix that contains the lower and upper confidence interval bounds.

Details

This is an inefficient brute-force algorithm. The algorithm computes the conf.level range of possible values for m, as if it was unknown, for a large range of values of N. It then finds all possible values of N for which m was in the conf.level range. The smallest and largest values of N for which m was in the conf.level range are the CI endpoints.

Note

This algorithm is experimental at this point.

Author

Derek H. Ogle, derek@derekogle.com

Examples

hyperCI(50,25,10)

#>      95% LCI 95% UCI
#> [1,]      86     228