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    <h1>Calculate a time course of relative concentrations based on an mkinmod model</h1>
    <small class="dont-index">Source: <a href='https://github.com/jranke/pfm/blob/master/R/pfm_degradation.R'><code>R/pfm_degradation.R</code></a></small>
    <div class="hidden name"><code>pfm_degradation.Rd</code></div>
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    <div class="ref-description">
    
    <p>Calculate a time course of relative concentrations based on an mkinmod model</p>
    
    </div>

    <pre class="usage"><span class='fu'>pfm_degradation</span>(<span class='kw'>model</span> <span class='kw'>=</span> <span class='st'>"SFO"</span>, <span class='kw'>DT50</span> <span class='kw'>=</span> <span class='fl'>1000</span>, <span class='kw'>parms</span> <span class='kw'>=</span> <span class='fu'>c</span>(<span class='kw'>k_parent_sink</span> <span class='kw'>=</span>
  <span class='fu'>log</span>(<span class='fl'>2</span>)/<span class='no'>DT50</span>), <span class='kw'>years</span> <span class='kw'>=</span> <span class='fl'>1</span>, <span class='kw'>step_days</span> <span class='kw'>=</span> <span class='fl'>1</span>, <span class='kw'>times</span> <span class='kw'>=</span> <span class='fu'>seq</span>(<span class='fl'>0</span>, <span class='no'>years</span> * <span class='fl'>365</span>, <span class='kw'>by</span> <span class='kw'>=</span>
  <span class='no'>step_days</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>model</th>
      <td><p>The degradation model to be used. Either a parent only model like
'SFO' or 'FOMC', or an mkinmod object</p></td>
    </tr>
    <tr>
      <th>DT50</th>
      <td><p>The half-life. This is only used when simple exponential decline
is calculated (SFO model).</p></td>
    </tr>
    <tr>
      <th>parms</th>
      <td><p>The parameters used for the degradation model</p></td>
    </tr>
    <tr>
      <th>years</th>
      <td><p>For how many years should the degradation be predicted?</p></td>
    </tr>
    <tr>
      <th>step_days</th>
      <td><p>What step size in days should the output have?</p></td>
    </tr>
    <tr>
      <th>times</th>
      <td><p>The output times</p></td>
    </tr>
    </table>
    

    <h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
    <pre class="examples"><div class='input'><span class='fu'>head</span>(<span class='fu'>pfm_degradation</span>(<span class='st'>"SFO"</span>, <span class='kw'>DT50</span> <span class='kw'>=</span> <span class='fl'>10</span>))</div><div class='output co'>#&gt;   time    parent
#&gt; 1    0 1.0000000
#&gt; 2    1 0.9330330
#&gt; 3    2 0.8705506
#&gt; 4    3 0.8122524
#&gt; 5    4 0.7578583
#&gt; 6    5 0.7071068</div></pre>
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    <h2>Contents</h2>
    <ul class="nav nav-pills nav-stacked">
      <li><a href="#arguments">Arguments</a></li>
            
      <li><a href="#examples">Examples</a></li>
    </ul>

    <h2>Author</h2>
    
Johannes Ranke

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