daubcqf                 package:rwt                 R Documentation

_f_i_l_t_e_r _c_r_e_a_t_i_o_n _f_u_n_c_t_i_o_n

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

     Computes the Daubechies' scaling and wavelet filters (normalized
     to sqrt(2)).

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

     daubcqf(N, type = PHASE.MINIMUM)

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

       N: Length of filter (must be even)

    type: Distinguishes the minimum phase, maximum phase and mid-phase
          solutions. Valid values are:

            'PHASE.MINIMUM'
            'PHASE.MID'
            'PHASE.MAXIMUM'

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

     Returns a list with components: 

     h.0: Minimal phase Daubechies' scaling filter

     h.1: Minimal phase Daubechies' wavelet filter

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

     P. Roebuck, roebuck@mdanderson.org

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

     "Orthonormal Bases of Compactly Supported Wavelets", CPAM, Oct.89

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

     h <- daubcqf(6);

