griddata objects         package:wavethresh         R Documentation

_D_a_t_a _i_n_t_e_r_p_o_l_a_t_e_d _t_o _a _g_r_i_d _o_b_j_e_c_t_s.

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

     These are objects of classes 

     'griddata'

     These objects store the results of interpolating a 1-D regression
     data set to a grid which is a power of two in length

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

     The help page for 'makegrid' and Kovac, (1997), p.81 give further
     details about how a 'griddata' object is constructed.

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

     The following components must be included in a legitimate griddata
     object.  

   gridt: a vector containing the values of the grid on the "x" axis.

   gridy: a vector containing the values of the grid on the "y" axis.
          This vector has to be the same length as gridt. Typically the
          values in ('gridt, gridy') are the results of interpolating
          arbitrary data ('x,y') onto ('gridt, gridy').

  Gindex: Each entry in 'Gindex' refers to one of the pairs in ('x,y')
          which is contributing to the ('gridt, gridy') interpolant.
          See previous help for 'G'.

_G_E_N_E_R_A_T_I_O_N:

     This class of objects is returned from the 'makegrid' function to
     represent the results of interpolating a 1-D regression data set
     to a grid.

_M_E_T_H_O_D_S:

     The 'griddata' class of objects really on has one function that
     uses it: 'irregwd'.

_R_E_L_E_A_S_E:

     Version 3.9.6 Copyright Arne Kovac 1997 Copyright Guy Nason (help
     pages) 1999.

_S_E_E _A_L_S_O:

     'makegrid', 'irregwd'

