mbtrim                 package:Rwave                 R Documentation

_T_r_i_m _D_y_a_d_i_c _W_a_v_e_l_e_t _T_r_a_n_s_f_o_r_m _E_x_t_r_e_m_a

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

     Trimming of dyadic wavelet transform local extrema, using
     bootstrapping.

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

     mbtrim(extrema, scale=FALSE, prct=0.95)

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

 extrema: dyadic wavelet transform extrema (output of `ext'). 

   scale: when set, the wavelet transform at each scale will be plotted
           with the same scale. 

    prct: 

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

     The distribution of extrema of dyadic wavelet transform at each
     scale is generated by bootstrap method, and the 95% critical value
     is used for thresholding the extrema of the signal.

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

     Structure containing 

original: original signal. 

 extrema: trimmed extrema representation. 

      Sf: coarse resolution of signal. 

maxresoln: number of decomposition scales. 

      np: size of signal. 

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

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

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

     `mntrim', `mrecons', `ext'.

