selfStart                package:nls                R Documentation

_C_o_n_s_t_r_u_c_t _S_e_l_f-_s_t_a_r_t_i_n_g _N_o_n_l_i_n_e_a_r _M_o_d_e_l_s

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

     This function is generic; methods functions can be written to
     handle specific classes of objects. Available methods include
     `selfStart.default' and `selfStart.formula'. See the documentation
     on the appropriate method function.

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

     selfStart(model, initial, parameters, template)

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

   model: a function object defining a nonlinear model.

 initial: a function object, taking three arguments: `mCall', `data',
          and `LHS', representing, respectively, a matched call to the
          function `model', a data frame in which to interpret the
          variables in `mCall', and the expression from the left-hand
          side of the model formula in the call to `nls'. This function
          should return initial values for the parameters in `model'.

parameters, template: arguments used by some methods..

_V_a_l_u_e:

     a function object of the `selfStart' class.

_A_u_t_h_o_r(_s):

     Jose Pinheiro and Douglas Bates

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

     `selfStart.default', `selfStart.formula'

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

     ## see documentation for the methods

