xclara package:cluster R Documentation _B_i_v_a_r_i_a_t_e _D_a_t_a _S_e_t _w_i_t_h _3 _C_l_u_s_t_e_r_s _D_e_s_c_r_i_p_t_i_o_n: An artificial data set consisting of 3000 points in 3 well-separated clusters of size 1000 each. _U_s_a_g_e: data(xclara) _F_o_r_m_a_t: A data frame with 3000 observations on 2 numeric variables giving the x and y coordinates of the points, respectively. _S_o_u_r_c_e: Sample data set accompanying the reference below, obtained from . _R_e_f_e_r_e_n_c_e_s: Anja Struyf, Mia Hubert & Peter J. Rousseeuw (1996): Clustering in an Object-Oriented Environment. _Journal of Statistical Software_, *1*.