| tonedata {mixtools} | R Documentation |
Tone perception data
Description
The tone perception data stem
from an experiment of Cohen (1980) and have been analyzed in de Veaux
(1989) and Viele and Tong (2002). The dataset and this documentation file
were copied from the fpc package by Christian Hennig.
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.
Usage
data(tonedata)Format
A data frame with 2 variables, stretchratio and
tuned, and 150 cases.
Author(s)
Christian Hennig
Source
Original source: Cohen, E. A. (1980), Inharmonic tone perception. Unpublished Ph.D. dissertation, Stanford University
R source: Hennig, Christian (2010), fpc: Flexible procedures for clustering, R package version 2.0-2. https://cran.r-project.org/package=fpc
References
de Veaux, R. D. (1989), Mixtures of Linear Regressions, Computational Statistics and Data Analysis 8, 227-245.
Viele, K. and Tong, B. (2002), Modeling with Mixtures of Linear Regressions, Statistics and Computing 12, 315-330.