topo                  package:MASS                  R Documentation

_S_p_a_t_i_a_l _T_o_p_o_g_r_a_p_h_i_c _D_a_t_a

_D_e_s_c_r_i_p_t_i_o_n:

     The 'topo' data frame has 52 rows and 3 columns, of topographic
     heights within a 310 feet square.

_U_s_a_g_e:

     topo

_F_o_r_m_a_t:

     This data frame contains the following columns:

     '_x' x coordinates (units of 50 feet)

     '_y' y coordinates (units of 50 feet)

     '_z' heights (feet)

_S_o_u_r_c_e:

     Davis, J.C. (1973) _Statistics and Data Analysis in Geology._
     Wiley.

_R_e_f_e_r_e_n_c_e_s:

     Venables, W. N. and Ripley, B. D. (2002) _Modern Applied
     Statistics with S._ Fourth edition.  Springer.