tonedata: Tone perception data

In mixtools: Tools for Analyzing Finite Mixture Models

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 Unpublished Ph.D. dissertation, Stanford University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.

mixtools documentation built on Dec. 5, 2022, 5:23 p.m.