ShiftOperators         package:compositions         R Documentation

_S_h_i_f_t_s _o_f _m_a_c_h_i_n_e _o_p_e_r_a_t_o_r_s

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

     Compsitions of eight-hours shifts of 27 machine operators.

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

     data(ShiftOperators)

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

     A study of the activities of 27 machine operators during their
     eight-hours shifts has been conducted, and proportions of time
     spend in the  following categories:

         A:  high-quality production,
         B:  low-quality production,
         C:  machine setting,
         D:  machine repair,

     are recorded. Of particular interest are any insights which such
     data  might give of relationships between productive and
     nonproductive parts of such shifts. All compositions sum up  one
     except for rounding error.

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

     Aitchison: CODA microcomputer statistical package, 1986, the file
     name SHIFT.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 22), pp22.

