R: Coking data

coking {ISwR} | R Documentation

## Coking data

### Description

The `coking` data frame has 18 rows and 3 columns. It contains the time to coking in an experiment where the oven width and temperature were varied.

### Usage

    coking

### Format

This data frame contains the following columns:

`width`

  a factor with levels `4`, `8`, and `12`, giving the oven width in inches.

`temp`

  a factor with levels `1600` and `1900`, giving the temperature in Fahrenheit.

`time`

  a numeric vector, time to coking.

### Source

R.A. Johnson (1994), Miller and Freund's Probability and Statistics for Engineers, 5th ed., Prentice-Hall.

### Examples

    attach(coking)
    matplot(tapply(time,list(width,temp),mean))
    detach(coking)

[Package ISwR version 2.0-7 Index]