ear: Ears data from table 11.10
In dobson: Data from the GLM Book by Dobson and Barnett

Description Usage Format Source Examples

Numbers of ears clear of acute otitis media at 14 days by antibiotic treatment and age of the child. The children had acute otitis media in both ears.

data(ear)

A tibble with 18 observations and the following 4 variables.

age: child's age
treatment: two treatments coded CEF and AMO
number clear: number of clear ears
frequency: faculty

Rosner, B. (1989). Multivariate methods for clustered binary data with more than one level of nesting. Journal of the American Statistical Association 84, 373<e2><80><93>380.