An experiment was conducted to determine the optimum conditions for
extruding plastic film. Three responses were measured in relation
to two factors, rate of extrusion and amount of an additive.
Usage
data(Plastic)
Arguments
Format
A data frame with 20 observations on the following 5 variables.
tear
a numeric vector: tear resistance
gloss
a numeric vector: film gloss
opacity
a numeric vector: film opacity
rate
a factor representing change in the rate of extrusion
with levels Low (-10%), High (10%)
additive
a factor with levels Low (1.0%), High (1.5%)
References
Krzanowski, W. J. (1988). Principles of Multivariate Analysis. A User's Perspective. Oxford.
(p. 381)