survreg.control           package:survival           R Documentation

_P_a_c_k_a_g_e _o_p_t_i_o_n_s _f_o_r _s_u_r_v_r_e_g _a_n_d _c_o_x_p_h

_D_e_s_c_r_i_p_t_i_o_n:

     These functions check and package the fitting options for
     'survreg' and 'coxph'

_U_s_a_g_e:

     survreg.control(maxiter=30, rel.tolerance=1e-09, failure=1,
     toler.chol=1e-10, iter.max, debug=0, outer.max=10)
     coxph.control (eps = 1e-09, toler.chol = .Machine$double.eps^0.75, 
         iter.max = 20, toler.inf = sqrt(eps), outer.max = 10) 

_A_r_g_u_m_e_n_t_s:

 maxiter: maximum number of iterations 

rel.tolerance: relative tolerance to declare convergence 

 failure: value of status variable indicating failure

toler.chol: Tolerance to declare Cholesky decomposition singular

iter.max: same as 'maxiter'

   debug: print debugging information

outer.max: maximum number of outer iterations for choosing penalty
          parameters

     eps: Tolerance to declare convergence for Cox model

toler.inf: An undocumented parameter

_V_a_l_u_e:

     A list with the same elements as the input

_S_e_e _A_l_s_o:

     'survreg', 'coxph'

