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    <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><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>
    <dl class="dl-horizontal">
      <dt>chent</dt>
      <dd>The chent 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>
    
    <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>
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