WhiteCells           package:compositions           R Documentation

_W_h_i_t_e-_c_e_l_l _c_o_m_p_o_s_i_t_i_o_n _o_f _3_0 _b_l_o_o_d _s_a_m_p_l_e_s _b_y _t_w_o _d_i_f_f_e_r_e_n_t _m_e_t_h_o_d_s

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

     In 30 blood samples portions of three kinds of white cells

_G: granulocytes,

_L: lymphocytes,

_M: monocytes, were determined with two methods, time-consuming
     microscopic and automatic image analysis. The resulting 30 pairs
     of 3-part compositions are recorded.

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

     data(WhiteCells)

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

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

     In an experiment each of 30 blood samples was halved, one half
     being assigned randomly to one method, the other half to the other
     method. We have 60 cases of 3-part compositions but these are
     essentially 30 pairs of related compositions. All 3-part portions
     sums to one,  except for some rounding errors.

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

     Aitchison: CODA microcomputer statistical package, 1986, the file
     name WCELLS.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, 1986 (Data 9) pp16.

