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<title>endpoint. pfm 0.3-1</title>
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<h1>Retrieve endpoint information from the chyaml field of a chent object</h1>
<div class="row">
<div class="span8">
<h2>Usage</h2>
<pre><div>endpoint(chent, medium = "soil", type = c("degradation", "sorption"), lab_field = c(NA, "laboratory", "field"), redox = c(NA, "aerobic", "anaerobic"), value = c("DT50ref", "Kfoc", "N"), aggregator = geomean, raw = FALSE, signif = 3)</div>
<div>soil_DT50(chent, aggregator = geomean, signif = 3, lab_field = "laboratory", value = "DT50ref", redox = "aerobic", raw = FALSE)</div>
<div>soil_Kfoc(chent, aggregator = geomean, signif = 3, value = "Kfoc", raw = FALSE)</div>
<div>soil_N(chent, aggregator = mean, signif = 3, raw = FALSE)</div>
<div>soil_sorption(chent, values = c("Kfoc", "N"), aggregators = c(Kfoc = geomean, Koc = geomean, N = mean), signif = rep(3, length(values)), raw = FALSE)</div></pre>
<h2>Arguments</h2>
<dl>
<dt>chent</dt>
<dd>The <code><a href='http://www.inside-r.org/packages/cran/chents/docs/chent'>chent</a></code> object to get the information from</dd>
<dt>medium</dt>
<dd>The medium for which information is sought</dd>
<dt>type</dt>
<dd>The information type</dd>
<dt>lab_field</dt>
<dd>If not NA, do we want laboratory or field endpoints</dd>
<dt>redox</dt>
<dd>If not NA, are we looking for aerobic or anaerobic data</dd>
<dt>value</dt>
<dd>The name of the value we want. The list given in the
usage section is not exclusive</dd>
<dt>aggregator</dt>
<dd>The aggregator function. Can be mean,
<code><a href='geomean.html'>geomean</a></code>, or identity, for example.</dd>
<dt>raw</dt>
<dd>Should the number(s) be returned as stored in the chent
object (could be a character value) to retain original information
about precision?</dd>
<dt>signif</dt>
<dd>How many significant digits do we want</dd>
<dt>values</dt>
<dd>The values to be returned</dd>
<dt>aggregators</dt>
<dd>A named vector of aggregator functions to be used</dd>
</dl>
<div class="Value">
<h2>Value</h2>
<p><dl>
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.
</dl></p>
</div>
<div class="Description">
<h2>Description</h2>
<p>R6 class objects of class <code><a href='http://www.inside-r.org/packages/cran/chents/docs/chent'>chent</a></code> 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>
</div>
<div class="Details">
<h2>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>
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<div class="span4">
<!-- <ul>
<li>endpoint</li><li>soil_DT50</li><li>soil_Kfoc</li><li>soil_N</li><li>soil_sorption</li>
</ul>
<ul>
</ul> -->
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