

ttime(event)                                 R Documentation

_C_r_e_a_t_e _a _V_e_c_t_o_r _o_f _T_o_t_a_l _T_i_m_e _E_l_a_p_s_e_d _f_o_r _e_a_c_h _I_n_d_i_v_i_d_u_a_l
_f_o_r _a _P_o_i_n_t _P_r_o_c_e_s_s

_U_s_a_g_e_:

     ttime(y, id)

_A_r_g_u_m_e_n_t_s_:

       y: Vector of times.

      id: Vector of corresponding individual identifiers for
          who had which sequence of times.

_V_a_l_u_e_:

     `ttime' creates a vector of length `sum(y)' of times
     since each individual began for use with `ehr'.

_A_u_t_h_o_r_(_s_)_:

     J.K. Lindsey

_S_e_e _A_l_s_o_:

     `bp', `ehr', `ident', `pp', `tccov', `tpast', `tvcov'.

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

     y <- c(5,3,2,4)
     id <- c(1,1,2,2)
     itime <- ttime(y, id)
     itime

