data.matrix               package:base               R Documentation

_D_a_t_a _F_r_a_m_e _t_o _N_u_m_e_r_i_c _M_a_t_r_i_x

_D_e_s_c_r_i_p_t_i_o_n:

     Return the matrix obtained by converting all the variables in a
     data frame to numeric mode and then binding them together as the
     columns of a matrix.  Factors and ordered factors are replaced by
     their codes.

_U_s_a_g_e:

     data.matrix(frame)

_A_r_g_u_m_e_n_t_s:

   frame: a data frame whose components are either logical vectors,
          factors or numeric vectors.

_S_e_e _A_l_s_o:

     `as.matrix', `codes', `data.frame', `matrix'.

