hohnloser              package:maxstat              R Documentation

_L_e_f_t _v_e_n_t_r_i_c_u_l_a_r _e_j_e_c_t_i_o_n _f_r_a_c_t_i_o_n _o_f _p_a_t_i_e_n_t_s _w_i_t_h _m_a_l_i_g_n_a_n_t _v_e_n_t_r_i_c_u_l_a_r
_t_a_c_h_y_a_r_r_h_y_t_h_m_i_a_s

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

     A data frame with the left ventricular ejection fraction of
     patients with malignant ventricular including recurrence-free
     month and censoring.

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

     data(hohnloser)

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

     `_E_F' left ventricular ejection in percent

     `_m_o_n_t_h' recurrence-free month

     `_c_e_n_s' censoring: 0 cencored, 1 not censored

     The data used here is published in Table 1 of Lausen and
     Schumacher (1992).

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

     Hohnloser, S.H., Raeder, E.A., Podrid, P.J., Graboys, T.B. and
     Lown, B. (1987), Predictors of antiarrhythmic drug efficacy in
     patients with malignant ventricular tachyarrhythmias. American
     Heart Journal 114, 1-7

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

     Lausen, B. and Schumacher, M. (1992), Maximally Selected Rank
     Statistics. Biometrics 48, 73-85

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

     data(hohnloser)

     # The approximation used in Lausen & Schumacher

     maxstat.test(hohnloser$EF, hohnloser$month, cens=hohnloser$cens,
     smethod="LogRank", pmethod="Lau92")

     # improved Bonferroni inequality

     maxstat.test(hohnloser$EF, hohnloser$month, cens=hohnloser$cens,
     smethod="LogRank", pmethod="Lau94")

     # The approximation by Hothorn & Lausen

     maxstat.test(hohnloser$EF, hohnloser$month, cens=hohnloser$cens,
     smethod="LogRank", pmethod="HL", plot=T)

     maxstat.test(hohnloser$EF, hohnloser$month, cens=hohnloser$cens,
     smethod="LogRank", pmethod="exactGauss")

