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role="menu"> + <li> + <a href="../articles/mkin.html">Introduction to mkin</a> + </li> + <li> + <a href="../articles/FOCUS_D.html">Example evaluation of FOCUS Example Dataset D</a> + </li> + <li> + <a href="../articles/FOCUS_L.html">Example evaluation of FOCUS Laboratory Data L1 to L3</a> + </li> + <li> + <a href="../articles/web_only/FOCUS_Z.html">Example evaluation of FOCUS Example Dataset Z</a> + </li> + <li> + <a href="../articles/web_only/compiled_models.html">Performance benefit by using compiled model definitions in mkin</a> + </li> + <li> + <a href="../articles/twa.html">Calculation of time weighted average concentrations with mkin</a> + </li> + </ul> +</li> +<li> + <a href="../news/index.html">News</a> +</li> + </ul> + + <ul class="nav navbar-nav navbar-right"> + + </ul> + + </div><!--/.nav-collapse --> + </div><!--/.container --> +</div><!--/.navbar --> + + + </header> + +<div class="row"> + <div class="col-md-9 contents"> + <div class="page-header"> + <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'><-</span> <span class='fu'>nafta</span>(<span class='no'>MRID_555555</span>)</div><div class='output co'>#> <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'>#> <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'>#> <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'>#> Parameters: +#> $SFO +#> Estimate Pr(>t) Lower Upper +#> parent_0 83.755751519 8.076390e-15 76.928220975 90.583282063 +#> k_parent_sink 0.001703321 7.452357e-05 0.001108568 0.002617164 +#> +#> $IORE +#> Estimate Pr(>t) Lower Upper +#> parent_0 9.685291e+01 NA 8.752855e+01 1.061773e+02 +#> k__iore_parent_sink 8.403374e-14 NA 1.092054e-19 6.466412e-08 +#> N_parent 6.684458e+00 NA 3.538511e+00 9.830405e+00 +#> +#> $DFOP +#> Estimate Pr(>t) Lower Upper +#> parent_0 9.755655e+01 4.439930e-13 8.884447e+01 1.062686e+02 +#> k1 4.240633e-02 3.554769e-02 1.414189e-02 1.271610e-01 +#> k2 8.237928e-04 2.060933e-02 3.172784e-04 2.138925e-03 +#> g 2.881037e-01 1.313715e-04 1.783967e-01 4.299694e-01 +#> +#> +#> DTx values: +#> DT50 DT90 DT50_rep +#> SFO 407 1352 407 +#> IORE 541 5192066 1562968 +#> DFOP 429 2383 841 +#> +#> Representative half-life: +#> [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> + + <footer> + <div class="copyright"> + <p>Developed by Johannes Ranke.</p> +</div> + +<div class="pkgdown"> + <p>Site built with <a href="https://pkgdown.r-lib.org/">pkgdown</a> 1.3.0.</p> +</div> + </footer> + </div> + + + + </body> +</html> + |