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)

Results

R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
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Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(ISwR)
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/ISwR/coking.Rd_%03d_medium.png", width=480, height=480)
> ### Name: coking
> ### Title: Coking data
> ### Aliases: coking
> ### Keywords: datasets
> 
> ### ** Examples
> 
> attach(coking)
> matplot(tapply(time,list(width,temp),mean))
> detach(coking)
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>