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.

datasets

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
regulatory guidance documents and environmental statistics literature. Includes
scripts reproducing analyses presented in the book "EnvStats: An R Package for
Environmental Statistics" (Millard, 2013, Springer, ISBN 978-1-4614-8455-4,
<https://www.springer.com/book/9781461484554>).

Alexander Kowarik

EnvStats

Package for Environmental Statistics, Including US EPA Guidance

Steven P. Millard

Helsel.Hirsch.02.Mayfly.df function

A data frame with 24 observations on the following 3 variables.<dl class="dl-horizontal">
 <dt><code>Mayfly.Count</code></dt><dd>Number of mayfly nymphs counted</dd>
 <dt><code>Stream</code></dt><dd>a factor indicating the stream number</dd>
 <dt><code>Location</code></dt><dd>a factor indicating the location of the count (above vs. below)</dd>
 </dl>

Format

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

A data frame with 24 observations on the following 3 variables.<dl class='dl-horizontal'>
 <dt><code>Mayfly.Count</code></dt><dd>Number of mayfly nymphs counted</dd>
 <dt><code>Stream</code></dt><dd>a factor indicating the stream number</dd>
 <dt><code>Location</code></dt><dd>a factor indicating the location of the count (above vs. below)</dd>
 </dl>

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

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