orth_D           package:ffmanova           R Documentation(latin1)

_M_a_k_i_n_g _a_d_j_u_s_t_e_d _d_e_s_i_g_n _m_a_t_r_i_x _d_a_t_a

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

     The function takes the output from 'modelData' as input and
     calculates adjusted data

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

     orth_D(D, model, method)

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

       D: A list containing a regressor matrix for each model term

   model: The model coded as a matrix

  method: Either '"test"' or '"om"'

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

     The '"test"' method adjusts data according to Type II* sums of
     squares. This is an extension of the traditional Type II method.
     The '"om"' method orthogonalises terms according to the model
     hierarchy. The result is a non-overparameterised representation of
     the model.

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

     An adjusted version of 'D' is returned.

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

     yvind Langsrud and Bjrn-Helge Mevik

