ddiff                  package:emu                  R Documentation

_D_i_f_f_e_r_e_n_t_i_a_t_i_o_n _o_f _t_r_a_c_k_s

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

     Differentiates a list, as returned by track, to the nth order,
     readjusting the index and ftime values each time.

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

        ddiff(dataset, n = 1, smoothing = TRUE)

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

 dataset: track data object - a list as returned by track 

       n: the order of differentiation 

smoothing: if TRUE track is smoothed 

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

     Jonathan Harrington

