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.
A data frame with 23 observations on the following 5 variables.
P. J. Rousseeuw and A. M. Leroy (1987) Robust Regression and Outlier Detection; Wiley, page 154, table 22.
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
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