robustbase: aircraft – R documentation

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aircraft

Aircraft Data

Description

Aircraft Data, deals with 23 single-engine aircraft built over the years 1947-1979, from Office of Naval Research. The dependent variable is cost (in units of \$100,000) and the explanatory variables are aspect ratio, lift-to-drag ratio, weight of plane (in pounds) and maximal thrust.

Usage

data(aircraft, package="robustbase")

Format

A data frame with 23 observations on the following 5 variables.

X1: Aspect Ratio
X2: Lift-to-Drag Ratio
X3: Weight
X4: Thrust
Y: Cost

Source

P. J. Rousseeuw and A. M. Leroy (1987) Robust Regression and Outlier Detection; Wiley, page 154, table 22.

Examples

data(aircraft)
summary( lm.airc <-        lm(Y ~ ., data = aircraft))
summary(rlm.airc <- MASS::rlm(Y ~ ., data = aircraft))

aircraft.x <- data.matrix(aircraft[,1:4])
c_air <- covMcd(aircraft.x)
c_air

robustbase

Basic Robust Statistics

v0.93-7

GPL (>= 2)

Authors

Martin Maechler [aut, cre] (<https://orcid.org/0000-0002-8685-9910>), Peter Rousseeuw [ctb] (Qn and Sn), Christophe Croux [ctb] (Qn and Sn), Valentin Todorov [aut] (most robust Cov), Andreas Ruckstuhl [aut] (nlrob, anova, glmrob), Matias Salibian-Barrera [aut] (lmrob orig.), Tobias Verbeke [ctb, fnd] (mc, adjbox), Manuel Koller [aut] (mc, lmrob, psi-func.), Eduardo L. T. Conceicao [aut] (MM-, tau-, CM-, and MTL- nlrob), Maria Anna di Palma [ctb] (initial version of Comedian)

Initial release

2021-01-04