hearlossC                package:sca                R Documentation

_H_e_a_r_i_n_g _L_o_s_s _C_o_r_r_e_l_a_t_i_o_n _D_a_t_a

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

     The data consist of eight measurements of hearing loss taken on
     100 males, aged 39, who had no indication of hearing difficulties.
      These measurements are decibel loss (in comparison to a reference
     standard)  at frequencies 500Hz, 1000Hz, 2000Hz and 4000Hz for the
     left and the right ear, respectively.

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

     data(hearlossC)

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

     Eight Variables, first the ones for ``Left'', than for the
     ``Right''. The frequences are abbreviated, e.g., '2k' for _2000
     Hz_ or '5c' for _500 Hz_. The variable names are (in this order)
     '"Left5c",  "Left1k",  "Left2k",  "Left4k", "Right5c", "Right1k",
     "Right2k", "Right4k"'.

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

     This is the correlation matrix of data described in Chapter 5 of
     Jackson (1991).

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

     Jackson, J.E. (1991) _A User's Guide to Principal Components_.
     John Wiley, New York.

_E_x_a_m_p_l_e_s:

     data(hearlossC)
     symnum(hearlossC)

