sscCrosstab-class           package:Matrix           R Documentation

_P_a_i_r_w_i_s_e _c_r_o_s_s_t_a_b_u_l_a_t_i_o_n_s

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

     An 'sscCrosstab' object is a pairwise crosstabulation of two or
     more factors expressed as an 'sscMatrix' plus additional
     information.

_O_b_j_e_c_t_s _f_r_o_m _t_h_e _C_l_a_s_s:

     Objects can be created by calls of the form 'new("sscCrosstab",
     ...)' or by a call to the constructor function 'sscCrosstab'.

_S_l_o_t_s:

     '_G_p': integer vector of pointers to the beginning of each group of
          columns.  Its length is 1 greater than the number of groups. 
          Successive differences give the number of levels of each
          factor. 

     '_p_e_r_m': Integer permutation vector giving a fill-reducing
          permutation for the Cholesky decomposition.  The permutation
          is constrained to keep the groups of columns corresponding to
          different factors distinct.

     '_u_p_l_o': as for '"sscMatrix"' objects.

     '_p': as for '"sscMatrix"' objects.

     '_i': as for '"sscMatrix"' objects.

     '_x': as for '"sscMatrix"' objects.

     '_D_i_m': as for '"sscMatrix"' objects.

     '_f_a_c_t_o_r_i_z_a_t_i_o_n': as for '"sscMatrix"' objects.

_E_x_t_e_n_d_s:

     Class '"sscMatrix"', directly. Class '"cscMatrix"', by class
     '"sscMatrix"'.

_M_e_t_h_o_d_s:

     _i_m_a_g_e 'signature(x = "sscCrosstab")': plots an image of 'x' using
          the 'levelplot' function

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

     'sscMatrix-class', 'sscCrosstab'

