Soybean                 package:nlme                 R Documentation



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

     The `Soybean' data frame has 412 rows and 5 columns.

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

     This data frame contains the following columns:

       Plot a factor giving a unique identifier for each plot.

    Variety a factor indicating the variety; Forrest (F) or Plant
            Introduction #416937 (P).

       Year a factor indicating the year the plot was planted.

       Time a numeric vector giving the time the sample was taken (days
            after planting).

     weight a numeric vector giving the average leaf weight per plant
            (g).

_D_e_t_a_i_l_s:

     These data are described in Davidian and Giltinan (1995, 1.1.3,
     p.7) as ``Data from an experiment to compare growth patterns of
     two genotypes of soybeans: Plant Introduction #416937 (P), an
     experimental strain, and Forrest (F), a commercial variety.''

_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.27)

     Davidian, M. and Giltinan, D. M. (1995), Nonlinear Models for
     Repeated Measurement Data,  Chapman and Hall, London.

_E_x_a_m_p_l_e_s:

     data(Soybean)

