coking | R Documentation |
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.
coking
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.
R.A. Johnson (1994), Miller and Freund's Probability and Statistics for Engineers, 5th ed., Prentice-Hall.
attach(coking)
matplot(tapply(time,list(width,temp),mean))
detach(coking)
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