Helsel.Hirsch.02.Mayfly.df

Counts of mayfly nymphs at low flow in 12 small streams.  
  In each stream, counts were recorded above and below industrial outfalls.

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Graphical and statistical analyses of environmental data, with 
  focus on analyzing chemical concentrations and physical parameters, usually in 
  the context of mandated environmental monitoring.  Major environmental 
  statistical methods found in the literature and regulatory guidance documents, 
  with extensive help that explains what these methods do, how to use them, 
  and where to find them in the literature.  Numerous built-in data sets from 
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  scripts reproducing analyses presented in the book "EnvStats:  An R Package for 
  Environmental Statistics" (Millard, 2013, Springer).

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Helsel.Hirsch.02.Mayfly.df function

Helsel, D.R., and R.M. Hirsch. (2002). <em>Statistical Methods in Water Resources Research</em>. 
  Techniques of Water Resources Investigations, Book 4, Chapter A3.  U.S. Geological Survey, 
  139--140.  <url>http://water.usgs.gov/pubs/twri/twri4a3/</url>.

Helsel.Hirsch.02.Mayfly.df: Paired Counts of Mayfly Nymphs Above and Below Industrial Outfalls

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