model.matrix.formula        package:AlgDesign        R Documentation

_B_u_i_l_d_s _a _m_o_d_e_l _m_a_t_r_i_x

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

     Produces a model matrix using expand.formula()

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

     model.matrix.formula(frml,data,...)

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

    frml: A formula.

    data: A data.frame

     ...: Additional arguments passed to model.matrix.default()

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

     This is a method function signaled by a formula as the first
     argument.  It causes the formula to be translated by
     expand.formula() before calling model.matrix.default().

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

     A matix.

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

     Bob Wheeler bwheeler@echip.com

     Please cite this program as follows:

     Wheeler, R.E. (2004). model.matrix.formula. _AlgDesign_. The R
     project for statistical computing <URL: http://www.r-project.org/>

