Delivery Time Data, from Montgomery and Peck (1982). The aim is to explain the time required to service a vending machine (Y) by means of the number of products stocked (X1) and the distance walked by the route driver (X2).
A data frame with 25 observations on the following 3 variables.
Number of Products
Montgomery and Peck (1982, p.116)
P. J. Rousseeuw and A. M. Leroy (1987) Robust Regression and Outlier Detection; Wiley, page 155, table 23.
data(delivery) summary(lm.deli <- lm(delTime ~ ., data = delivery)) delivery.x <- as.matrix(delivery[, 1:2]) c_deli <- covMcd(delivery.x) c_deli
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