

ducks(boot)                                  R Documentation

_B_e_h_a_v_i_o_r_a_l _a_n_d _P_l_u_m_a_g_e _C_h_a_r_a_c_t_e_r_i_s_t_i_c_s _o_f _H_y_b_r_i_d _D_u_c_k_s

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

 plumage: The index of physical appearance based on the
          plumage of individual ducks.

behaviour: The index of behavioural characteristics of the
          ducks.

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

     The `ducks' data frame has 11 rows and 2 columns.

     Each row of the data frame represents a male duck who
     is a second generation cross of mallard and pintail
     ducks.  For 11 such ducks a behavioural and plumage
     index were calculated.  These were measured on scales
     devised for this experiment which was to examine
     whether there was any link between which species the
     ducks resembled physically and which they resembled in
     behaviour.  The scale for the physical appearance
     ranged from 0 (identical in appearance to a mallard) to
     20 (identical to a pintail).  The behavioural traits of
     the ducks were on a scale from 0 to 15 with lower num-
     bers indicating closer to mallard-like in behaviour.

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

     This data frame contains the following columns:

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

     The data were obtained from

     Larsen, R.J. and Marx, M.L. (1986) An Introduction to
     Mathematical Statistics and its Applications (Second
     Edition). Prentice-Hall.

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

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

     Sharpe, R.S., and Johnsgard, P.A. (1966) Inheritance of
     behavioral characters in F2 mallard  x  pintail (Anas
     Platyrhynchos L.  x  Anas Acuta L.)  hybrids.
     Behaviour, 27, 259-272.

