rat                   package:alr3                   R Documentation

_R_a_t _d_a_t_a

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

     Data collected in an experiment in which rats were injected with a
     dose of a drug approximately proportional to body weight.  At the
     end of the experiment, the animal's liver was weighed, and the
     fraction of the drug recoved in the liver was recorded.  The
     experimenter expected the response to be independent of the
     predictors.

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

     This data frame contains the following columns:

     _B_o_d_y_W_t BodyWt of the rat

     _L_i_v_e_r_W_t LiverWt measured after sacrifice

     _D_o_s_e Dose, roughly proportional to body weight

     _y dose of drug recovered after sacrifice of the animal

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

     Dennis Cook

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

     Weisberg, S. (2005). _Applied Linear Regression_, 3rd edition. New
     York: Wiley, Section 9.2.3.

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

     data(rat)
     pairs(rat)
     summary(m1 <- lm(y~BodyWt+LiverWt+Dose, data=rat))
     inf.index(m1)

