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stack.dat

Brownlee's Stack-Loss Data

Description

These data are from the operation of a plant for the oxidation of ammonia to nitric acid, measured on 21 consecutive days.

Usage

data(stack.dat)

Format

This data frame contains the following variables:

Loss: the percentage of ammonia lost (times 10).
Air.Flow: air flow into the plant
Water.Temp: cooling water inlet temperature.
Acid.Conc.: acid concentration as a percentage (coded by subtracting 50 and then multiplying by 10).

Source

Brownlee, K.A. (1965). Statistical Theory and Methodology in Science and Engineering. New York: John Wiley & Sons, Inc.

Examples

data(stack.dat)
  stack.dat

robust

Port of the S+ "Robust Library"

v0.5-0.0

GPL-2

Authors

Jiahui Wang, Ruben Zamar <ruben@stat.ubc.ca>, Alfio Marazzi <Alfio.Marazzi@inst.hospvd.ch>, Victor Yohai <vyohai@dm.uba.ar>, Matias Salibian-Barrera <matias@stat.ubc.ca>, Ricardo Maronna <maron@mate.unlp.edu.ar>, Eric Zivot <ezivot@u.washington.edu>, David Rocke <dmrocke@ucdavis.edu>, Doug Martin, Martin Maechler <maechler@stat.math.ethz.ch>, Kjell Konis <kjell.konis@me.com>.

Initial release

2020-03-07