<!-- Generated by pkgdown: do not edit by hand -->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Retrieve endpoint information from the chyaml field of a chent object — endpoint • pfm</title>
<!-- jquery -->
<script src="https://code.jquery.com/jquery-3.1.0.min.js" integrity="sha384-nrOSfDHtoPMzJHjVTdCopGqIqeYETSXhZDFyniQ8ZHcVy08QesyHcnOUpMpqnmWq" crossorigin="anonymous"></script>
<!-- Bootstrap -->
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<!-- Font Awesome icons -->
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css" rel="stylesheet" integrity="sha384-T8Gy5hrqNKT+hzMclPo118YTQO6cYprQmhrYwIiQ/3axmI1hQomh7Ud2hPOy8SP1" crossorigin="anonymous">
<!-- clipboard.js -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/1.7.1/clipboard.min.js" integrity="sha384-cV+rhyOuRHc9Ub/91rihWcGmMmCXDeksTtCihMupQHSsi8GIIRDG0ThDc3HGQFJ3" crossorigin="anonymous"></script>
<!-- pkgdown -->
<link href="../pkgdown.css" rel="stylesheet">
<script src="../jquery.sticky-kit.min.js"></script>
<script src="../pkgdown.js"></script>
<meta property="og:title" content="Retrieve endpoint information from the chyaml field of a chent object — endpoint" />
<meta property="og:description" content="R6 class objects of class chent represent chemical entities
and can hold a list of information loaded from a chemical yaml file in their
chyaml field. Such information is extracted and optionally aggregated by
this function." />
<meta name="twitter:card" content="summary" />
<!-- mathjax -->
<script src='https://mathjax.rstudio.com/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML'></script>
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<div class="container template-reference-topic">
<header>
<div class="navbar navbar-default navbar-fixed-top" role="navigation">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="../index.html">pfm</a>
</div>
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li>
<a href="../index.html">
<span class="fa fa-home fa-lg"></span>
</a>
</li>
<li>
<a href="../reference/index.html">Reference</a>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
</ul>
</div><!--/.nav-collapse -->
</div><!--/.container -->
</div><!--/.navbar -->
</header>
<div class="row">
<div class="col-md-9 contents">
<div class="page-header">
<h1>Retrieve endpoint information from the chyaml field of a chent object</h1>
</div>
<p>R6 class objects of class chent represent chemical entities
and can hold a list of information loaded from a chemical yaml file in their
chyaml field. Such information is extracted and optionally aggregated by
this function.</p>
<pre class="usage"><span class='fu'>endpoint</span>(<span class='no'>chent</span>, <span class='kw'>medium</span> <span class='kw'>=</span> <span class='st'>"soil"</span>, <span class='kw'>type</span> <span class='kw'>=</span> <span class='fu'>c</span>(<span class='st'>"degradation"</span>, <span class='st'>"sorption"</span>),
<span class='kw'>lab_field</span> <span class='kw'>=</span> <span class='fu'>c</span>(<span class='fl'>NA</span>, <span class='st'>"laboratory"</span>, <span class='st'>"field"</span>), <span class='kw'>redox</span> <span class='kw'>=</span> <span class='fu'>c</span>(<span class='fl'>NA</span>, <span class='st'>"aerobic"</span>,
<span class='st'>"anaerobic"</span>), <span class='kw'>value</span> <span class='kw'>=</span> <span class='fu'>c</span>(<span class='st'>"DT50ref"</span>, <span class='st'>"Kfoc"</span>, <span class='st'>"N"</span>), <span class='kw'>aggregator</span> <span class='kw'>=</span> <span class='no'>geomean</span>,
<span class='kw'>raw</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>, <span class='kw'>signif</span> <span class='kw'>=</span> <span class='fl'>3</span>)
<span class='fu'>soil_DT50</span>(<span class='no'>chent</span>, <span class='kw'>aggregator</span> <span class='kw'>=</span> <span class='no'>geomean</span>, <span class='kw'>signif</span> <span class='kw'>=</span> <span class='fl'>3</span>,
<span class='kw'>lab_field</span> <span class='kw'>=</span> <span class='st'>"laboratory"</span>, <span class='kw'>value</span> <span class='kw'>=</span> <span class='st'>"DT50ref"</span>, <span class='kw'>redox</span> <span class='kw'>=</span> <span class='st'>"aerobic"</span>,
<span class='kw'>raw</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>)
<span class='fu'>soil_Kfoc</span>(<span class='no'>chent</span>, <span class='kw'>aggregator</span> <span class='kw'>=</span> <span class='no'>geomean</span>, <span class='kw'>signif</span> <span class='kw'>=</span> <span class='fl'>3</span>, <span class='kw'>value</span> <span class='kw'>=</span> <span class='st'>"Kfoc"</span>,
<span class='kw'>raw</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>)
<span class='fu'>soil_N</span>(<span class='no'>chent</span>, <span class='kw'>aggregator</span> <span class='kw'>=</span> <span class='no'>mean</span>, <span class='kw'>signif</span> <span class='kw'>=</span> <span class='fl'>3</span>, <span class='kw'>raw</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>)
<span class='fu'>soil_sorption</span>(<span class='no'>chent</span>, <span class='kw'>values</span> <span class='kw'>=</span> <span class='fu'>c</span>(<span class='st'>"Kfoc"</span>, <span class='st'>"N"</span>), <span class='kw'>aggregators</span> <span class='kw'>=</span> <span class='fu'>c</span>(<span class='kw'>Kfoc</span> <span class='kw'>=</span>
<span class='no'>geomean</span>, <span class='kw'>Koc</span> <span class='kw'>=</span> <span class='no'>geomean</span>, <span class='kw'>N</span> <span class='kw'>=</span> <span class='no'>mean</span>), <span class='kw'>signif</span> <span class='kw'>=</span> <span class='fu'>c</span>(<span class='kw'>Kfoc</span> <span class='kw'>=</span> <span class='fl'>3</span>, <span class='kw'>N</span> <span class='kw'>=</span> <span class='fl'>3</span>),
<span class='kw'>raw</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>)</pre>
<h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a> Arguments</h2>
<table class="ref-arguments">
<colgroup><col class="name" /><col class="desc" /></colgroup>
<tr>
<th>chent</th>
<td><p>The chent object to get the information from</p></td>
</tr>
<tr>
<th>medium</th>
<td><p>The medium for which information is sought</p></td>
</tr>
<tr>
<th>type</th>
<td><p>The information type</p></td>
</tr>
<tr>
<th>lab_field</th>
<td><p>If not NA, do we want laboratory or field endpoints</p></td>
</tr>
<tr>
<th>redox</th>
<td><p>If not NA, are we looking for aerobic or anaerobic data</p></td>
</tr>
<tr>
<th>value</th>
<td><p>The name of the value we want. The list given in the
usage section is not exclusive</p></td>
</tr>
<tr>
<th>aggregator</th>
<td><p>The aggregator function. Can be mean,
<code><a href='geomean.html'>geomean</a></code>, or identity, for example.</p></td>
</tr>
<tr>
<th>raw</th>
<td><p>Should the number(s) be returned as stored in the chent
object (could be a character value) to retain original information
about precision?</p></td>
</tr>
<tr>
<th>signif</th>
<td><p>How many significant digits do we want</p></td>
</tr>
<tr>
<th>values</th>
<td><p>The values to be returned</p></td>
</tr>
<tr>
<th>aggregators</th>
<td><p>A named vector of aggregator functions to be used</p></td>
</tr>
</table>
<h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>
<p>The result from applying the aggregator function to
the values converted to a numeric vector, rounded to the
given number of significant digits, or, if raw = TRUE,
the values as a character value, retaining any implicit
information on precision that may be present.</p>
<h2 class="hasAnchor" id="details"><a class="anchor" href="#details"></a>Details</h2>
<p>The functions <code>soil_*</code> are functions to extract soil specific endpoints.
For the Freundlich exponent, the capital letter <code>N</code> is used in order to
facilitate dealing with such data in R. In pesticide fate modelling, this
exponent is often called 1/n.</p>
</div>
<div class="col-md-3 hidden-xs hidden-sm" id="sidebar">
<h2>Contents</h2>
<ul class="nav nav-pills nav-stacked">
<li><a href="#arguments">Arguments</a></li>
<li><a href="#value">Value</a></li>
<li><a href="#details">Details</a></li>
</ul>
</div>
</div>
<footer>
<div class="copyright">
<p>Developed by Johannes Ranke.</p>
</div>
<div class="pkgdown">
<p>Site built with <a href="http://pkgdown.r-lib.org/">pkgdown</a>.</p>
</div>
</footer>
</div>
</body>
</html>