bladder package:survival R Documentation _B_l_a_d_d_e_r _C_a_n_c_e_r _R_e_c_u_r_r_e_n_c_e_s _D_e_s_c_r_i_p_t_i_o_n: Data on recurrences of bladder cancer, used by many people to demonstrate methodology for recurrent event modelling. _U_s_a_g_e: data(bladder) _F_o_r_m_a_t: bladder id: Patient id rx: Treatment 1=placebo 2=thiotepa number: Initial number of tumours (8=8 or more) size: size (cm) of largest initial tumour stop: recurrence or censoring time enum: which recurrence (up to 4) bladder2 id: Patient id rx: Treatment 1=placebo 2=thiotepa number: Initial number of tumours (8=8 or more) size: size (cm) of largest initial tumour start: start of interval (0 or previous recurrence time) stop: recurrence or censoring time enum: which recurrence (up to 4) _S_o_u_r_c_e: Wei, Lin, Weisfeld, JASA 1989