Ovary                  package:nlme                  R Documentation

_C_o_u_n_t_s _o_f _O_v_a_r_i_a_n _F_o_l_l_i_c_l_e_s

_D_e_s_c_r_i_p_t_i_o_n:

     The 'Ovary' data frame has 308 rows and 3 columns.

_F_o_r_m_a_t:

     This data frame contains the following columns:

     _M_a_r_e an ordered factor indicating the mare on which the
          measurement is made.

     _T_i_m_e time in the estrus cycle.  The data were recorded daily from
          3 days before ovulation until 3 days after the next
          ovulation. The measurement times for each mare are scaled so
          that the ovulations for each mare occur at times 0 and 1.

     _f_o_l_l_i_c_l_e_s the number of ovarian follicles greater than 10 mm in
          diameter.

_D_e_t_a_i_l_s:

     Pierson and Ginther (1987) report on a study of the number of
     large ovarian follicles detected in different mares at several
     times in their estrus cycles.

_S_o_u_r_c_e:

     Pinheiro, J. C. and Bates, D. M. (2000), _Mixed-Effects Models in
     S and S-PLUS_, Springer, New York.  (Appendix A.18)

     Pierson, R. A. and Ginther, O. J. (1987), Follicular population
     dynamics during the estrus cycle of the mare, _Animal Reproduction
     Science_, *14*, 219-231.

_E_x_a_m_p_l_e_s:

     data(Ovary)

