EngrExpt (version 0.1-6)

deink: De-inking of newsprint

Description

De-inking of newsprint

References

Peter R. Nelson, Marie Coffin and Karen A. F. Copeland (2003), Introductory Statistics for Engineering Experimentation, Elsevier. (Appendix A)

Examples

str(deink)
xtabs(~ alkali + hardness, deink)
dotplot(hardness ~ bright, deink, groups = alkali,
        auto.key = list(columns = 3, lines = TRUE),
        type = c("p","a"), aspect = 'xy',
        xlab = "Brightness by amount of alkali",
        ylab = "Hardness of the water")