Coal {rankFD}

Coal Acidity

Description

Coal acidity values determined under each of three NaOH concentration levels for two different samples from each type of coal

Usage

data(Coal)

Format

A data frame with 18 rows and 3 variables:

Acidity

resulting acidity values

NaOH

the NaOH concentration

Type

three different types of coal: "Morwell", "Yallourn" and "Maddingley"

Source

Hollander, M., Wolfe, D. A., Chicken, E. (2014) Nonparametric Statistical Methods. Wiley Series in Probability and Statistics.

Sternhell, S. (1958) Chemistry of brown coals VI: Further aspects of the chemistry of hydroxyl groups in Victorian brown coals. Australian Journal of Applied Science 9, 375–379.