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- _D_a_t_a _F_r_a_m_e _t_o _N_u_m_e_r_i_c _M_a_t_r_i_x
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- data.matrix(frame)
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- _A_r_g_u_m_e_n_t_s:
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- frame : a data frame whose components are either log-
- ical vectors, factors or numeric vectors.
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- _V_a_l_u_e:
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- 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.
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- _S_e_e _A_l_s_o:
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- as.matrix, codes, data.frame, matrix.
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