heads               package:calibrate               R Documentation

_D_i_m_e_n_s_i_o_n_s _o_f _h_e_a_d_s _o_f _f_i_r_s_t _a_n_d _s_e_c_o_n_d _s_o_n_s _f_o_r _2_5 _f_a_m_i_l_i_e_s

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

     Variables X1 and X2 are the head length and head breadth of the
     first son and  Y1 and Y2 are the same variables for the second
     son.

_U_s_a_g_e:

     data(heads)

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

     A data frame containing 25 observations.

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

     Mardia, 1979, p. 121

_R_e_f_e_r_e_n_c_e_s:

     Frets, G. P. (1921) _Heredity of head form in man_, Genetica 3,
     pp. 193-384.

     Mardia, K. V. and Kent, J. T. and Bibby, J. M. (1979)
     _Multivariate Analysis_. Academic Press London.

     Anderson, T. W. (1984) _An Introduction to Multivariate
     Statistical Analysis_. New York: John Wiley, Second edition.

