R: Brownlee's Stack-Loss Data

stack.dat {robust} | R Documentation

## 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

[Package robust version 0.5-0.0 Index]