Sediments            package:compositions            R Documentation

_P_r_o_p_o_r_t_i_o_n_s _o_f _s_a_n_d, _s_i_l_t _a_n_d _c_l_a_y _i_n _s_e_d_i_m_e_n_t_s _s_p_e_c_i_m_e_n_s

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

     Data provide sand, silt and clay compositions of 21  sediments
     specimens, 10 of which are identified as {\em offshore,\/} 7 as
     {\em near shore\/} and  4 new samples.

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

     data(Sediments)

_F_o_r_m_a_t:

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

     The data comprise 21 cases: 10 offshore, 7 near shore and 4 new
     samples, and 4 variables: sand, silt and clay proportions and in
     addition the type of   sediments specimens - 1 for offshore, 2 for
     near shore and 3 for new samples. 

     All 3-part compositions sum to one.

_S_o_u_r_c_e:

     Aitchison: CODA microcomputer statistical package, 1986, the file
     name YATQUAD.DAT, here included under the GNU Public Library
     Licence Version 2 or newer.

_R_e_f_e_r_e_n_c_e_s:

     Aitchison, J. (1986) The Statistical Analysis of Compositional
     Data, (Data 20) pp17.

