dtpMatrix-class            package:Matrix            R Documentation

_P_a_c_k_e_d _t_r_i_a_n_g_u_l_a_r _d_e_n_s_e _m_a_t_r_i_c_e_s

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

     The '"dtpMatrix"' class is the class of triangular, dense, numeric
     matrices in packed storage.  The '"dtrMatrix"' class is the same
     except in nonpacked storage.

_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("dtpMatrix",
     ...)' or by coercion from other classes of matrices.

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

     '_u_p_l_o': Object of class '"character"'. Must be either "U", for
          upper triangular, and "L", for lower triangular.

     '_d_i_a_g': Object of class '"character"'. Must be either '"U"', for
          unit triangular (diagonal is all ones), or '"N"' for
          non-unit.  The implicit diagonal elements are not explicitly
          stored when 'diag' is '"U"'.

     '_x': Object of class '"numeric"'. The numeric values that
          constitute the matrix, stored in column-major order.

     '_D_i_m': Object of class '"integer"'. The dimensions of the matrix
          which must be a two-element vector of non-negative integers.

     '_r_c_o_n_d': Object of class '"numeric"'. A named numeric vector of
          reciprocal condition numbers in either the 1-norm '"O"' or
          the infinity norm '"I"'.

     '_f_a_c_t_o_r_s': Object of class '"list"'.  A named list of
          factorizations that have been computed for the matrix.

     '_D_i_m_n_a_m_e_s': Object of class '"list"'. The dimnames of the matrix
          which must be a list of two elements.  The elements should be
          either 'NULL' or a character vector whose length matches the
          corresponding dimension.

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

     Class '"ddenseMatrix"', directly. Class '"dMatrix"', by class
     '"ddenseMatrix"'. Class '"Matrix"', by class '"ddenseMatrix"'.

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

     %*% 'signature(x = "dtpMatrix", y = "dgeMatrix")': Matrix
          multiplication; dito for several other signature
          combinations, see 'showMethods("%*%", class = "dtpMatrix")'.

     _c_o_e_r_c_e 'signature(from = "dtpMatrix", to = "dtrMatrix")'

     _c_o_e_r_c_e 'signature(from = "dtpMatrix", to = "dgeMatrix")'

     _c_o_e_r_c_e 'signature(from = "dtpMatrix", to = "matrix")'

     _d_e_t_e_r_m_i_n_a_n_t 'signature(x = "dtpMatrix", logarithm = "missing")':
          ... 

     _d_e_t_e_r_m_i_n_a_n_t 'signature(x = "dtpMatrix", logarithm = "logical")':
          ... 

     _d_i_a_g 'signature(x = "dtpMatrix")': ... 

     _n_o_r_m 'signature(x = "dtpMatrix", type = "character")': ... 

     _n_o_r_m 'signature(x = "dtpMatrix", type = "missing")': ... 

     _r_c_o_n_d 'signature(x = "dtpMatrix", type = "character")': ... 

     _r_c_o_n_d 'signature(x = "dtpMatrix", type = "missing")': ... 

     _s_o_l_v_e 'signature(a = "dtpMatrix", b = "missing")': ... 

     _s_o_l_v_e 'signature(a = "dtpMatrix", b = "matrix")': ... 

     _t 'signature(x = "dtpMatrix")': ... 

     _u_n_p_a_c_k 'signature(x = "dtpMatrix")': ... 

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

     'dtrMatrix-class'

