The number of ear infections in swimmers
data(earinf)
A data frame with 287 observations on the following 5 variables.
Swim
how often the swimmer swims in the ocean;
a factor with levels Freq
(frequently) and Occas
(occasionally)
Loc
the reported usual swimming location;
a factor with levels Beach
and NonBeach
Age
the age group;
a factor with levels 15-19
, 20-24
and 25-29
Sex
the sex;
a factor with levels Female
and Male
NumInfec
the number of self-diagnosed ear infections; a numeric vector
Infec
whether there are self-diagnosed ear infections;
a numeric vector where 0
means no self-reported infection,
and 1
means at least one self-reported ear infection
The data give the number of self-reported ear infections in the 1990 Pilot Surf/Health Study of nsw Water Board.
D. J. Hand, F. Daly, A. D. Lunn, K. J. McConway, and E. Ostrowski (1994) A Handbook of Small Data Sets, London: Chapman and Hall. Dataset 328.