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'

