Odor, yellowing and hardness of optical coating
Odor, yellowing and hardness of optical coating
A data frame with 35 observations on the following 3 variables.
odora numeric vector
yellowinga numeric vector
hardnessa numeric vector
These data are quality data gathered from 35 random samples of a raw material used in a lens coating. It is beneficial to understand the relationships between desired quality characteristics of a product as one must often compromise one characteristic for another.
Peter R. Nelson, Marie Coffin and Karen A. F. Copeland (2003), Introductory Statistics for Engineering Experimentation, Elsevier. (Appendix A)
str(odor)
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