cats                  package:MASS                  R Documentation

_A_n_a_t_o_m_i_c_a_l _D_a_t_a _f_r_o_m _D_o_m_e_s_t_i_c _C_a_t_s

_D_e_s_c_r_i_p_t_i_o_n:

     The heart and body weights of samples of male and female cats used
     for _digitalis_ experiments.  The cats were all adult, over 2 kg
     body weight.

_U_s_a_g_e:

     cats

_F_o_r_m_a_t:

     This data frame contains the following columns:

     '_S_e_x' sex: Factor with evels '"F"' and '"M"'.

     '_B_w_t' body weight in kg.

     '_H_w_t' heart weight in g.


_S_o_u_r_c_e:

     R. A. Fisher (1947) The analysis of covariance method for the
     relation between a part and the whole, _Biometrics_ *3*, 65-68.

_R_e_f_e_r_e_n_c_e_s:

     Venables, W. N. and Ripley, B. D. (2002) _Modern Applied
     Statistics with S._ Fourth edition.  Springer.