seriditdiff: Compute standard error of difference between two mean ridits
In ridittools: Useful Functions for Ridit Analysis

Description Usage Arguments Details Value Author(s) References Examples

Computes the approximate standard error of the difference between the mean ridits of two groups. This does not depend on the reference group the mean ridits are relative to, only on the sizes of the two groups.

1	seriditdiff(g1, g2)

`g1`	vector of counts (not ridits) for first group
`g2`	vector of counts (not ridits) for second group

the order of the two groups doesn't matter.

approximate standard error of difference between mean ridits

Eric Bohlman

Fleiss, J.,L., (1981), Statistical Methods for Rates and Proportions. New York: John Wiley & Sons., p. 155

seriditdiff(semiauto[ , "Ind"], semiauto[ , "Rep"])

## The function is currently defined as
function(g1, g2) {
  sqrt(sum(g1) + sum(g2)) / (2 * sqrt(3 * sum(g1) * sum(g2)))
}