

menarche(MASS)                               R Documentation

_A_g_e _o_f _M_e_n_a_r_c_h_e _d_a_t_a

_D_e_s_c_r_i_p_t_i_o_n_:

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

_A_r_g_u_m_e_n_t_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.

_F_o_r_m_a_t_:

     This data frame contains the following columns:

_S_o_u_r_c_e_:

     Milicer, H. and 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_x_a_m_p_l_e_s_:

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

