qpDscale               package:qpgraph               R Documentation

_S_c_a_l_e _a _m_a_t_r_i_x _b_y _i_t_s _d_i_a_g_o_n_a_l

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

     Scales the values of a matrix by the values on the diagonal.

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

     qpDscale(V)

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

       V: matrix with numerical values.

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

     The scaling of the values of the matrix by its diagonal is made
     using the outer product of the inverted square root of the
     diagonal.

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

     A scaled matrix such that the diagonal values become the unit.

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

     R. Castelo and A. Roverato

_R_e_f_e_r_e_n_c_e_s:

     Castelo, R. and Roverato, A. A robust procedure for Gaussian
     graphical model search from microarray data with p larger than n.
     _J. Mach. Learn. Res._, 7:2621-2650, 2006.

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

     'qpK2R'

_E_x_a_m_p_l_e_s:

     m <- matrix(1:9, nrow=3)

     m

     qpDscale(m)

