Numbers of cattle bitten by the cow's estrous cycle.
A data frame with 4 observations on the following 3 variables.
- estrous
a factor with levels: no
and
yes
- bitten
a factor with levels: no
and
yes
- count
a numeric vector
Source
Turner, D.C. 1975. The Vampire Bat: a Field Study in Behavior
and Ecology. Johns Hopkins Press: Baltimore, MD.