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+ <h1>Evaluate parent kinetics using the NAFTA guidance</h1>
+
+ <div class="hidden name"><code>nafta.Rd</code></div>
+ </div>
+
+ <div class="ref-description">
+
+ <p>The function fits the SFO, IORE and DFOP models using
+ <code><a href='mmkin.html'>mmkin</a></code> and returns an object of class
+ <code>nafta</code> that has methods for printing and plotting.</p>
+
+ </div>
+
+ <pre class="usage"><span class='fu'>nafta</span>(<span class='no'>ds</span>, <span class='kw'>title</span> <span class='kw'>=</span> <span class='fl'>NA</span>, <span class='kw'>quiet</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>ds</th>
+ <td><p>A dataframe that must contain one variable called "time" with the time
+ values specified by the <code>time</code> argument, one column called "name" with
+ the grouping of the observed values, and finally one column of observed
+ values called "value".</p></td>
+ </tr>
+ <tr>
+ <th>title</th>
+ <td><p>Optional title of the dataset</p></td>
+ </tr>
+ <tr>
+ <th>quiet</th>
+ <td><p>Should the evaluation text be shown?</p></td>
+ </tr>
+ </table>
+
+ <h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>
+
+ <p>An list of class <code>nafta</code>. The list element named "mmkin" is the
+ <code><a href='mmkin.html'>mmkin</a></code> object containing the fits of the three models.
+ The list element named "title" contains the title of the dataset used.
+ The list element "data" contains the dataset used in the fits.</p>
+
+ <h2 class="hasAnchor" id="source"><a class="anchor" href="#source"></a>Source</h2>
+
+ <p>NAFTA (2011) Guidance for evaluating and calculating degradation kinetics
+ in environmental media. NAFTA Technical Working Group on Pesticides
+ <a href='https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/guidance-evaluating-and-calculating-degradation'>https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/guidance-evaluating-and-calculating-degradation</a>
+ accessed 2019-02-22</p>
+<p>US EPA (2015) Standard Operating Procedure for Using the NAFTA Guidance to
+ Calculate Representative Half-life Values and Characterizing Pesticide
+ Degradation
+ <a href='https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/standard-operating-procedure-using-nafta-guidance'>https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/standard-operating-procedure-using-nafta-guidance</a></p>
+
+
+ <h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
+ <pre class="examples"><div class='input'> <span class='no'>nafta_evaluation</span> <span class='kw'>&lt;-</span> <span class='fu'>nafta</span>(<span class='no'>MRID_555555</span>)</div><div class='output co'>#&gt; <span class='message'>The SFO model is rejected as S_SFO is equal or higher than the critical value S_c</span></div><div class='output co'>#&gt; <span class='message'>The representative half-life of the IORE model is longer than the one corresponding to the terminal degradation rate found with the DFOP model.</span></div><div class='output co'>#&gt; <span class='message'>The reprentative half-life obtained from the DFOP model may be used</span></div><div class='input'> <span class='fu'><a href='https://www.rdocumentation.org/packages/base/topics/print'>print</a></span>(<span class='no'>nafta_evaluation</span>)</div><div class='output co'>#&gt; Parameters:
+#&gt; $SFO
+#&gt; Estimate Pr(&gt;t) Lower Upper
+#&gt; parent_0 83.755751519 8.076390e-15 76.928220975 90.583282063
+#&gt; k_parent_sink 0.001703321 7.452357e-05 0.001108568 0.002617164
+#&gt;
+#&gt; $IORE
+#&gt; Estimate Pr(&gt;t) Lower Upper
+#&gt; parent_0 9.685291e+01 NA 8.752855e+01 1.061773e+02
+#&gt; k__iore_parent_sink 8.403374e-14 NA 1.092054e-19 6.466412e-08
+#&gt; N_parent 6.684458e+00 NA 3.538511e+00 9.830405e+00
+#&gt;
+#&gt; $DFOP
+#&gt; Estimate Pr(&gt;t) Lower Upper
+#&gt; parent_0 9.755655e+01 4.439930e-13 8.884447e+01 1.062686e+02
+#&gt; k1 4.240633e-02 3.554769e-02 1.414189e-02 1.271610e-01
+#&gt; k2 8.237928e-04 2.060933e-02 3.172784e-04 2.138925e-03
+#&gt; g 2.881037e-01 1.313715e-04 1.783967e-01 4.299694e-01
+#&gt;
+#&gt;
+#&gt; DTx values:
+#&gt; DT50 DT90 DT50_rep
+#&gt; SFO 407 1352 407
+#&gt; IORE 541 5192066 1562968
+#&gt; DFOP 429 2383 841
+#&gt;
+#&gt; Representative half-life:
+#&gt; [1] 841.4096</div><div class='input'> <span class='fu'><a href='https://www.rdocumentation.org/packages/graphics/topics/plot'>plot</a></span>(<span class='no'>nafta_evaluation</span>)</div><div class='img'><img src='nafta-1.png' alt='' width='700' height='433' /></div></pre>
+ </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="#source">Source</a></li>
+
+ <li><a href="#examples">Examples</a></li>
+ </ul>
+
+ <h2>Author</h2>
+ <p>Johannes Ranke</p>
+ </div>
+</div>
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