Boxite             package:compositions             R Documentation

_C_o_m_p_o_s_i_t_i_o_n_s _a_n_d _d_e_p_t_h _o_f _2_5 _s_p_e_c_i_m_e_n_s _o_f _b_o_x_i_t_e

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

     A mineral compositions of 25 rock specimens of boxite type. Each
     composition consists of the percentage by weight of five minerals,
     albite, blandite, cornite, daubite, endite, as well as the depth
     of location.

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

     data(Boxite)

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

     A mineral compositions of 25 rock specimens of boxite type are
     given. Each composition consists of the percentage by weight of
     five minerals, albite, blandite, cornite, daubite, endite, and the
     recorded depth of location of each specimen. We abbreviate the
     minerals names to A, B, C, D, E.

     All row percentage sums to 100, except the 6-th 102.3 and the
     10-th 99.9.

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

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

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

     Aitchison: The Statistical Analysis of Compositional Data, 1986,
     Data 3, pp4.

