EPA.09.Ex.17.1.loglead.df

Log-transformed lead concentrations (ppb) at two background and four compliance wells (four quarterly measures at each well).

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,
<http://www.springer.com/book/9781461484554>).

Steven Millard

EnvStats

Package for Environmental Statistics, Including US EPA Guidance

EPA.09.Ex.17.1.loglead.df function

A data frame with 24 observations on the following 4 variables.<dl class="dl-horizontal">
 <dt><code>Month</code></dt><dd>a factor indicating the month of collection; <code>1</code> = Jan, <code>2</code> = Apr, <code>3</code> = Jul, <code>4</code> = Oct</dd>
 <dt><code>Well</code></dt><dd>a factor indicating the well number</dd>
 <dt><code>Well.type</code></dt><dd>a factor indicating the well type (background vs. compliance)</dd>
 <dt><code>LogLead</code></dt><dd>a numeric vector of log-transformed lead concentrations (ppb)</dd>
 </dl>

Format

Log-transformed Lead Concentrations from Example 17-1 of 2009 USEPA Guidance Document — EPA.09.Ex.17.1.loglead.df

A data frame with 24 observations on the following 4 variables.<dl class='dl-horizontal'>
 <dt><code>Month</code></dt><dd>a factor indicating the month of collection; <code>1</code> = Jan, <code>2</code> = Apr, <code>3</code> = Jul, <code>4</code> = Oct</dd>
 <dt><code>Well</code></dt><dd>a factor indicating the well number</dd>
 <dt><code>Well.type</code></dt><dd>a factor indicating the well type (background vs. compliance)</dd>
 <dt><code>LogLead</code></dt><dd>a numeric vector of log-transformed lead concentrations (ppb)</dd>
 </dl>

EPA.09.Ex.17.1.loglead.df: Log-transformed Lead Concentrations from Example 17-1 of 2009 USEPA Guidance Document

Description

Usage

Arguments

Format