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.
Usage
data(ear)
Arguments
Format
A tibble with 18 observations and the following 4 variables.
age
child's age (3 levels)
treatment
two treatments coded CEF and
AMO
number clear
number of clear ears (0, 1 or 2)
frequency
number of children
References
Rosner, B. (1989). Multivariate methods for clustered binary data with more
than one level of nesting. Journal of the American Statistical Association 84,
373–380.