| deink2 {EngrExpt} | R Documentation |
De-inking of newsprint
A data frame with 15 observations on the following 3 variables.
formulaA, B and
CnewspaperA, B,
C, D and EbrightOne step of recycling newsprint is to "de-ink" the newsprint, that is to remove the ink. The brightness of the paper pulp after a de-inking process is a measure of how well the process to remove the ink worked. In this experiment three formulations were tested on three newspapers (not all newsprint and ink are identical).
Peter R. Nelson, Marie Coffin and Karen A. F. Copeland (2003), Introductory Statistics for Engineering Experimentation, Elsevier. (Appendix A)
str(deink2)