SMIR (version 0.02)

stackloss: The Brownlee stackloss data

Description

The data consist of 21 observations on stack-loss (the loss of acid through the stack) in a chemical plant for the conversion of ammonia to nitric acid, with three explanatory variables: air flow(x1), cooling water inlet temperature(x2) and acid concentration(x3).

Usage

data(stackloss)

Arguments

Format

A data.frame of 21 obs. of 4 variables:
[,1] y
integer, loss of acid through the stack [,2]
x1 integer, air flow
[,3] x2
integer, cooling water inlet temperature [,4]
x3 integer, acid concentration

Source

Lange, K L and Little, R J A and Taylor, J M G, (1989). "Robust statistical modeling using the $t$ distribution", J Amer Statist Assoc, 84, 881--896.