MiningIron | R Documentation |
Iron concentrations at low flow for small eastern Ohio streams.
MiningIron
Data frame with 241 rows and 4 columns
Name | Type | Description |
Iron | numeric | Iron concentration |
Rock | factor | Rock type of the stream |
MineType | factor | Description of mining activity |
C5 | factor | Used to construct table C5 |
Appendix C6 in Helsel and Hirsch (2002).
Note: A different set of
randomly selected values are used to reconstruct table C5 than what was
selected in Helsel and Hirsch (2002).
Helsel, D.R., 1983, Mine drainage and rock type influences on
eastern Ohio stream water quality: Water Resources Bulletin, v. 19, no. 6,
p. 881–887.
Helsel, D.R., and Hirsch, R.M., 2002, Statistical
methods in water resources: U.S. Geological Survey Techniques of
Water-Resources Investigations, book 4, chap. A3, 522 p.
data(MiningIron) # Create simple boxplots by rock type and by mining activity par(mfrow=c(2,1), las=1) with(MiningIron, boxplot(split(Iron, Rock), range=0, log='y')) with(MiningIron, boxplot(split(Iron, MineType), range=0, log='y'))
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