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Salamander mating experiment data from McCullagh and Nelder.
data("salamander")
A data frame with 60 observations on the following 4 variables.
Cross
the type of salamanders involved in the crossing.
Female
the female salamander's ID.
Male
the male salamander's ID.
Mate
whether the crossing was successful or not.
McCullagh, P and Nelder J. A. (1989) Generalized Linear Models, Second Edition. Chapman and Hall, 1989