numderiv              package:mixstock              R Documentation

_t_a_k_e _t_h_e _n_u_m_e_r_i_c _d_e_r_i_v_a_t_i_v_e _o_f _a _f_u_n_c_t_i_o_n

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

     takes the numeric derivative (gradient) of a function by finite
     differencing

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

     numderiv(p, fn, eps = 1e-05, ...)

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

       p: parameter vector

      fn: function

     eps: finite-difference increment

     ...: other arguments to 'fn'

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

     numeric vector representing the approximate gradient of the
     function with respect to the parameters

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

     'numericDeriv'

