EPA.94b.lead.df

Lead concentrations (mg/Kg) in soil samples at a reference area and a 
 cleanup area. Nondetects reported as <code>&lt;39</code>. There are 14 observations 
 for each area.

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,
<doi:10.1007/978-1-4614-8456-1>).

Alexander Kowarik

EnvStats

Package for Environmental Statistics, Including US EPA Guidance

Steven P. Millard

EPA.94b.lead.df function

A data frame with 28 observations on the following 4 variables.<dl>
 <dt><code>Lead.orig</code></dt>
<dd>a character vector of original lead concentrations (mg/Kg)</dd> <dt><code>Lead</code></dt>
<dd>a numeric vector of lead concentrations with <code>&lt;39</code> coded as <code>39</code></dd> <dt><code>Censored</code></dt>
<dd>a logical vector indicating which observations are censored</dd> <dt><code>Area</code></dt>
<dd>a factor indicating the area (cleanup vs. reference)</dd> 
</dl>

Format

Lead Concentrations from 1994 USEPA Guidance Document — EPA.94b.lead.df

A data frame with 28 observations on the following 4 variables.<dl>
 <dt><code>Lead.orig</code></dt>
<dd>a character vector of original lead concentrations (mg/Kg)</dd>

 <dt><code>Lead</code></dt>
<dd>a numeric vector of lead concentrations with <code>&lt;39</code> coded as <code>39</code></dd>

 <dt><code>Censored</code></dt>
<dd>a logical vector indicating which observations are censored</dd>

 <dt><code>Area</code></dt>
<dd>a factor indicating the area (cleanup vs. reference)</dd>

 
</dl>

EPA.94b.lead.df: Lead Concentrations from 1994 USEPA Guidance Document

Description

Usage

Arguments

Format