CrohnD              package:robustbase              R Documentation

_C_r_o_h_n'_s _D_i_s_e_a_s_e _A_d_v_e_r_s_e _E_v_e_n_t_s _D_a_t_a

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

     Data set issued from a study of the adverse events of a drug on
     117 patients affected by Crohn's disease (a chronic inflammatory
     disease of the intestines).

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

     data(CrohnD)

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

     A data frame with 117 observations on the following 9 variables.

     '_I_D' the numeric patient IDs

     '_n_r_A_d_v_E' the number of adverse events

     '_B_M_I' {Body MASS Index, i.e., Body MASS Index, i.e.,
          eqnnormal-bracket15bracket-normal

     '_h_e_i_g_h_t' in cm

     '_c_o_u_n_t_r_y' a factor with levels '0' and '1'

     '_s_e_x' the person's gender, a binary factor with levels 'M' 'F'

     '_a_g_e' in years, a numeric vector

     '_w_e_i_g_h_t' in kilograms, a numeric vector

     '_t_r_e_a_t' how CD was treated: a factor with levels '0', '1' and '2',
          meaning placebo, drug~1 and drug~2.

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

     form the authors of the reference, with permission by the original
     data collecting agency.

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

     Serigne N. L\^o and Elvezio Ronchetti (2006). Robust Second Order
     Accurate Inference for Generalized Linear Models. Technical
     report, University of Geneva, Switzerland.

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

     data(CrohnD)
     str(CrohnD)
     with(CrohnD, ftable(table(sex,country, treat)))

