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name"><code>SFO.solution.Rd</code></div> </div> <div class="ref-description"> <p>Function describing exponential decline from a defined starting value.</p> </div> <div id="ref-usage"> <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">SFO.solution</span><span class="op">(</span><span class="va">t</span>, <span class="va">parent_0</span>, <span class="va">k</span><span class="op">)</span></span></code></pre></div> </div> <div id="arguments"> <h2>Arguments</h2> <dl><dt>t</dt> <dd><p>Time.</p></dd> <dt>parent_0</dt> <dd><p>Starting value for the response variable at time zero.</p></dd> <dt>k</dt> <dd><p>Kinetic rate constant.</p></dd> </dl></div> <div id="value"> <h2>Value</h2> <p>The value of the response variable at time <code>t</code>.</p> </div> <div id="references"> <h2>References</h2> <p>FOCUS (2006) “Guidance Document on Estimating Persistence and Degradation Kinetics from Environmental Fate Studies on Pesticides in EU Registration” Report of the FOCUS Work Group on Degradation Kinetics, EC Document Reference Sanco/10058/2005 version 2.0, 434 pp, <a href="http://esdac.jrc.ec.europa.eu/projects/degradation-kinetics" class="external-link">http://esdac.jrc.ec.europa.eu/projects/degradation-kinetics</a> FOCUS (2014) “Generic guidance for Estimating Persistence and Degradation Kinetics from Environmental Fate Studies on Pesticides in EU Registration” Report of the FOCUS Work Group on Degradation Kinetics, Version 1.1, 18 December 2014 <a href="http://esdac.jrc.ec.europa.eu/projects/degradation-kinetics" class="external-link">http://esdac.jrc.ec.europa.eu/projects/degradation-kinetics</a></p> </div> <div id="see-also"> <h2>See also</h2> <div class="dont-index"><p>Other parent solutions: <code><a href="DFOP.solution.html">DFOP.solution</a>()</code>, <code><a href="FOMC.solution.html">FOMC.solution</a>()</code>, <code><a href="HS.solution.html">HS.solution</a>()</code>, <code><a href="IORE.solution.html">IORE.solution</a>()</code>, <code><a href="SFORB.solution.html">SFORB.solution</a>()</code>, <code><a href="logistic.solution.html">logistic.solution</a>()</code></p></div> </div> <div id="ref-examples"> <h2>Examples</h2> <div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span></span></span> <span class="r-in"><span> <span class="fu"><a href="https://rdrr.io/r/graphics/plot.default.html" class="external-link">plot</a></span><span class="op">(</span><span class="kw">function</span><span class="op">(</span><span class="va">x</span><span class="op">)</span> <span class="fu">SFO.solution</span><span class="op">(</span><span class="va">x</span>, <span class="fl">100</span>, <span class="fl">3</span><span class="op">)</span>, <span class="fl">0</span>, <span class="fl">2</span><span class="op">)</span></span></span> <span class="r-plt img"><img src="SFO.solution-1.png" alt="" width="700" height="433"></span> <span class="r-in"><span></span></span> </code></pre></div> </div> </div> <div class="col-md-3 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