flywheels {NPCirc}

Flywheel measurements

Description

The data consists on measurements on mechanical flywheels, which are tools to regulate an engine's rotation in the automotive industry. The dataset contains 60 observations, containing the flywheels' angle of imbalance and the magnitude required to correct them. Four different types of metals were employed in the production process.

Usage

data("flywheels")

Format

A data frame with 60 observations on the following 3 variables.

angle

A numeric vector containing the angles of imbalance (in radians)

weight

A numeric vector containing the magnitudes of correction (in inch-ounces).

group

A vector with numbers from 1 to 4 indicating the type of metal.

Details

The data were analyzed in Anderson-Cook (1999) and Alonso-Pena et al. (2021).

Source

The dataset was obtained from Anderson-Cook (1999).

References

Anderson-Cook, C.M. (1999). A tutorial on one-way analysis of circular-linear data. Journal of Quality Technology, 31(1), 109–119.

Alonso-Pena, M., Ameijeiras-Alonso, J. and Crujeiras, R.M. (2021) Nonparametric tests for circular regression. Journal of Statistical Computation and Simulation, 91(3), 477–500.

Examples

data(flywheels)