robustbase (version 0.5-0-1)

airmay: Air Quality Data

Description

Air Quality Data Set for May 1973, from Chambers et al. (1983). The whole data set consists of daily readings of air quality values from May 1, 1973 to September 30, 1973, but here are included only the values for May. This data set is an example of the special treatment of the missing values.

Usage

data(airmay)

source

P. J. Rousseeuw and A. M. Leroy (1987) Robust Regression and Outlier Detection; Wiley, p.86, table 6.

Examples

data(airmay)
summary(lm.airmay <- lm(Y ~ ., data=airmay))
airmay.x <- data.matrix(airmay[,1:3])