accessD.wst            package:wavethresh            R Documentation

_G_e_t _m_o_t_h_e_r _w_a_v_e_l_e_t _c_o_e_f_f_i_c_i_e_n_t_s _f_r_o_m _a _p_a_c_k_e_t _o_r_d_e_r_e_d _n_o_n-_d_e_c_i_m_a_t_e_d _w_a_v_e_l_e_t _o_b_j_e_c_t (_w_s_t).

_D_e_s_c_r_i_p_t_i_o_n:

     The mother wavelet coefficients from a packet ordered
     non-decimated wavelet object, 'wst', are stored in a matrix. This
     function extracts all the coefficients corresponding to a
     particular resolution level.

_U_s_a_g_e:

     accessD.wst(wst, level, aspect = "Identity", ...)

_A_r_g_u_m_e_n_t_s:

     wst: Packet ordered non-decimated wavelet object from which you
          wish to extract the mother wavelet coefficients.

   level: The level that you wish to extract. This can range from zero
          (the coarsest coefficients) to nlevels(wstobj) which returns
          the original data. 

  aspect: 

     ...: 

_D_e_t_a_i_l_s:

     The 'wst' function performs a packet-ordered non-decimated wavelet
     transform. This function extracts all the mother wavelet
     coefficients at a particular resolution level specified by
     'level'.

     Note that coefficients returned by this function are in _packet
     order_. They can be used _as is_ but for many applications it
     might be more useful to deal with the coefficients in packets: see
     the function 'getpacket.wst' for further details. 

     Note that all the coefficients here are those of mother wavelets.
     The non-decimated transform efficiently computes all possible
     shifts of the discrete wavelet transform computed by 'wd'.

_V_a_l_u_e:

     A vector of the extracted coefficients.

_R_e_f_e_r_e_n_c_e_s:

     Nason, G.P. and Silverman, B.W. The stationary wavelet transform
     and some statistical applications.

_S_e_e _A_l_s_o:

     'wst', 'wst.object', 'accessD', 'getpacket.wst'

_E_x_a_m_p_l_e_s:

     #
     # Get the 4th level of mother wavelet coefficients from a decomposition
     #
     #accessD(wst(data), level=4)

