tonedata                 package:fpc                 R Documentation

_T_o_n_e _p_e_r_c_e_p_t_i_o_n _d_a_t_a

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

     The tone perception data stem from an experiment of Cohen (1980)
     and have been analyzed in de Veaux (1989). A pure fundamental tone
     was played to a trained musician. Electronically generated
     overtones were added, determined  by a stretching ratio of
     'stretchratio'. 'stretchratio=2.0' corresponds to the harmonic
     pattern usually heard in traditional definite pitched instruments.
     The musician was asked to tune an adjustable tone to the octave
     above the fundamental tone. 'tuned' gives the ratio of the
     adjusted tone to the fundamental, i.e. 'tuned=2.0' would be the
     correct tuning for all 'stretchratio'-values. The data analyzed
     here belong to 150 trials  with the same musician. In the original
     study, there were four further musicians.

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

     data(tonedata)

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

     A data frame with 2 variables 'stretchratio' and 'tuned' and 150
     cases.

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

     Cohen, E. A. (1980) _Inharmonic tone perception_. Unpublished
     Ph.D. dissertation, Stanford University

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

     de Veaux, R. D. (1989) Mixtures of Linear Regressions,
     _Computational Statistics and Data Analysis_ 8, 227-245.

