RidgeSampling             package:Rwave             R Documentation

_S_a_m_p_l_i_n_g _G_a_b_o_r _R_i_d_g_e

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

     Given a ridge phi (for the Gabor transform), returns a 
     (regularly) subsampled version of length nbnodes.

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

     RidgeSampling(phi, nbnodes)

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

     phi: ridge (1D array). 

 nbnodes: number of samples. 

_D_e_t_a_i_l_s:

     Gabor ridges are sampled uniformly.

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

     Returns a list containing the discrete values of the ridge. 

    node: time coordinates of the ridge samples. 

 phinode: frequency coordinates of the ridge samples. 

_R_e_f_e_r_e_n_c_e_s:

     See discussions in the text of "Time-Frequency Analysis''.

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

     `wRidgeSampling'.

