toeplitz package:stats R Documentation _F_o_r_m _S_y_m_m_e_t_r_i_c _T_o_e_p_l_i_t_z _M_a_t_r_i_x _D_e_s_c_r_i_p_t_i_o_n: Forms a symmetric Toeplitz matrix given its first row. _U_s_a_g_e: toeplitz(x) _A_r_g_u_m_e_n_t_s: x: the first row to form the Toeplitz matrix. _V_a_l_u_e: The Toeplitz matrix. _A_u_t_h_o_r(_s): A. Trapletti _E_x_a_m_p_l_e_s: x <- 1:5 toeplitz (x)