

darwin(boot)                                 R Documentation

_D_a_r_w_i_n_'_s _P_l_a_n_t _H_e_i_g_h_t _D_i_f_f_e_r_e_n_c_e_s

_A_r_g_u_m_e_n_t_s_:

       y: The difference in heights for the pairs of plants
          (in units of 0.125 inches).

_S_U_M_M_A_R_Y_:

     The `darwin' data frame has 15 rows and 1 columns.

     Charles Darwin conducted an experiment to examine the
     superiority of cross-fertilized plants over self-fer-
     tilized plants.  15 pairs of plants were used. Each
     pair consisted of one cross-fertilized plant and one
     self-fertilized plant which germinated at the same time
     and grew in the same pot. The plants were measured at a
     fixed time after planting and the difference in heights
     between the cross- and self-fertilized plants are
     recorded in eighths of an inch.

_D_A_T_A _D_E_S_C_R_I_P_T_I_O_N_:

     This data frame contains the following column:

_S_O_U_R_C_E_:

     The data were obtained from

     Fisher, R.A. (1935) Design of Experiments. Oliver and
     Boyd.

_O_T_H_E_R _R_E_F_E_R_E_N_C_E_S_:

     Darwin, C. (1876) The Effects of Cross- and Self-fer-
     tilisation in the Vegetable Kingdom.  John Murray.

     Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Meth-
     ods and Their Application. Cambridge University Press.

