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<h1>Calculate a time course of relative concentrations based on an mkinmod model</h1>
<div class="hidden name"><code>pfm_degradation.Rd</code></div>
</div>
<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'><a href='https://rdrr.io/r/base/c.html'>c</a></span>(<span class='kw'>k_parent</span> <span class='kw'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/Log.html'>log</a></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'><a href='https://rdrr.io/r/base/seq.html'>seq</a></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'><a href='https://rdrr.io/r/utils/head.html'>head</a></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'>#> time parent
#> 0 0 1.0000000
#> 1 1 0.9330330
#> 2 2 0.8705506
#> 3 3 0.8122524
#> 4 4 0.7578583
#> 5 5 0.7071068</div></pre>
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