BW                  package:mratios                  R Documentation

_B_o_d_y _w_e_i_g_h_t_s _m_e_a_s_u_r_e_d _i_n _a _t_o_x_i_c_o_l_o_g_i_c_a_l _s_t_u_d_y

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

     Body weights of a 90-day chronic toxicological study on rats with
     a control and three dose groups.

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

     data(BW)

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

     A data frame with 60 observations on the following 2 variables.

     _W_e_i_g_h_t a numeric vector containing the bodyweights of rats

     _D_o_s_e a factor with levels 1, 2, 3, 4, specifying the dose groups,
          where 1 is the control group 

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

     _Hothorn, L.A. (2004):_ Statistische Auswerteverfahren. In:
     _Regulatorische Toxikologie (Reichl, F.X., ed.)._ Springer Verlag
     Heidelberg, pp. 167-181.

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

     library(mratios)

     data(BW)

     str(BW)

     boxplot(Weight~Dose, data=BW)

