Tests of the presence of the bacteria H. influenzae in children with otitis media in the Northern
Territory of Australia (Ripley, et al., 2016).
Usage
data("bacteria")
Format
A data frame with 220 observations on the following 6 variables.
y
a factor with levels n (absence of bacteria) and y (preence of bacteria)
ap
a factor with levels a (active) and p (placebo)
hilo
a factor with levels hi (high compliance) and lo (low compliance)
week
week of test
ID
subjects identifier
trt
a factor with levels placebo, drug and drug+
References
Ripley, B., Venables, B., Bates, D.M., Hornik, K., Gebhardt, A. and Firsth, D. (2016). MASS: Support Functions and Datasets for Venables and Ripley's MASS. R package version 7.3-45.