\Header{menarche}{Age of Menarche data}
\keyword{datasets}{menarche}
\begin{Description}\relax
Proportions of female children at various ages during adolescence
who have reached menarche.
\end{Description}
\begin{Usage}
\begin{verbatim}
data(menarche)
\end{verbatim}
\end{Usage}
\begin{Format}\relax
This data frame contains the following columns:
\describe{
\item[\code{Age}] Average age of the group.  (The groups are reasonably age homogeneous.)

\item[\code{Total}] Total number of children in the group.

\item[\code{Menarche}] Number who have reached menarche.
}
\end{Format}
\begin{Source}\relax
Milicer, H. and Szczotka, F. (1966) Age at Menarche in Warsaw girls in
1965.
\emph{Human Biology}
\bold{38}, 199--203.

The data are also given in\\
Aranda-Ordaz, F.J. (1981)
On two families of transformations to additivity for binary response data.
\emph{Biometrika}
\bold{68}, 357--363.
\end{Source}
\begin{References}\relax
Venables, W. N. and Ripley, B. D. (2002)
\emph{Modern Applied Statistics with S.} Fourth edition.  Springer.
\end{References}
\begin{Examples}
\begin{ExampleCode}
mprob <- glm(cbind(Menarche, Total - Menarche) ~ Age,
             binomial(link = probit), data = menarche)
\end{ExampleCode}
\end{Examples}

