

   AAggee ooff MMeennaarrcchhee ddaattaa

   AArrgguummeennttss::

        Age: Average age of the group.  (The groups are reason-
             ably age homogeneous.)

      Total: Total number of children in the group.

   Menarche: Number who have reached menarche.

   SSUUMMMMAARRYY::

        Proportions of female children at various ages during
        adolescence who have reached menarche.

   DDAATTAA DDEESSCCRRIIPPTTIIOONN::

        This data frame contains the following columns:

   SSOOUURRCCEE::

        Milicer, H.  Szczotka, F. (1966) Age at Menarche in
        Warsaw girls in 1965.  Human Biology 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.  Biometrika, 68, 357-363.

   EExxaammpplleess::

        mprob <- glm(cbind(Menarche, Total - Menarche) ~ Age,
                  binomial(link = probit), menarche)

