Tests of the presence of the bacteria H. influenzae in children with otitis media in the Northern Territory of Australia.
data(bacteria)A data frame with the following columns:
Presence or absence: a factor with levels n and y.
active/placebo: a factor with levels a and p.
hi/low compliance: a factor with levels hi and lo.
Numeric: week of test.
Subject ID: a factor.
A factor with levels placebo, drug, drug+, a re-coding of ap and hilo.
y reformatted as 0/1 rather than n/y.
Dr. A. Leach tested the effects of a drug on 50 children with a history of otitis media in the Northern Territory of Australia. The children were randomized to the drug or the a placebo, and also to receive active encouragement to comply with taking the drug.
The presence of H. influenzae was checked at weeks 0, 2, 4, 6 and 11: 30 of the checks were missing and are not included in this data frame.
Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S, Fourth edition. Springer.