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      <h1> First-Order Multi-Compartment kinetics </h1>

<div class="row">
  <div class="span8">
    <h2>Usage</h2>
    <pre><span class="functioncall"><a href='FOMC.solution.html'>FOMC.solution</a></span><span class="keyword">(</span><span class="symbol">t</span><span class="keyword">,</span> <span class="symbol">parent.0</span><span class="keyword">,</span> <span class="symbol">alpha</span><span class="keyword">,</span> <span class="symbol">beta</span><span class="keyword">)</span></pre>
    
    <h2>Arguments</h2>
    <dl>
      <dt>t</dt>
      <dd> Time. </dd>
      <dt>parent.0</dt>
      <dd> Starting value for the response variable at time zero. </dd>
      <dt>alpha</dt>
      <dd> 
    Shape parameter determined by coefficient of variation of rate constant
    values. </dd>
      <dt>beta</dt>
      <dd>
    Location parameter.
</dd>
    </dl>
    
    <div class="Description">
      <h2>Description</h2>

      <p>Function describing exponential decline from a defined starting value, with 
  a decreasing rate constant.</p>

      <p>The form given here differs slightly from the original reference by Gustafson
  and Holden (1990). The parameter <code>beta</code> corresponds to 1/beta in the
  original equation.</p>

    </div>

    <div class="Note">
      <h2>Note</h2>

      <p>The solution of the FOMC kinetic model reduces to the
  <code><a href='SFO.solution.html'>SFO.solution</a></code> for large values of <code>alpha</code> and
  <code>beta</code> with 
  $k = beta/alpha$.</p>

    </div>

    <div class="Value">
      <h2>Value</h2>

      <p><dl>
  The value of the response variable at time <code>t</code>.
</dl></p>

    </div>

    <div class="References">
      <h2>References</h2>

      <p>FOCUS (2006) &#147;Guidance Document on Estimating Persistence and
  Degradation Kinetics from Environmental Fate Studies on Pesticides in EU
  Registration&#148; Report of the FOCUS Work Group on Degradation Kinetics,
  EC Document Reference Sanco/10058/2005 version 2.0, 434 pp,
  <a href = 'http://focus.jrc.ec.europa.eu/dk'>http://focus.jrc.ec.europa.eu/dk</a></p>

      <p>Gustafson DI and Holden LR (1990) Nonlinear pesticide dissipation in soil: A
  new model based on spatial variability. <em>Environmental Science and 
  Technology</em> <b>24</b>, 1032-1038</p>

    </div>
    
    <h2 id="examples">Examples</h2>
    <pre class="examples"><div class='input'>  <span class="functioncall"><a href='http://www.rdocumentation.org/packages/graphics/topics/plot'>plot</a></span><span class="keyword">(</span><span class="keyword">function</span><span class="keyword">(</span><span class="formalargs">x</span><span class="keyword">)</span> <span class="functioncall"><a href='FOMC.solution.html'>FOMC.solution</a></span><span class="keyword">(</span><span class="symbol">x</span><span class="keyword">,</span> <span class="number">100</span><span class="keyword">,</span> <span class="number">10</span><span class="keyword">,</span> <span class="number">2</span><span class="keyword">)</span><span class="keyword">,</span> <span class="number">0</span><span class="keyword">,</span> <span class="number">2</span><span class="keyword">,</span> <span class="argument">ylim</span> <span class="argument">=</span> <span class="functioncall"><a href='http://www.rdocumentation.org/packages/base/topics/c'>c</a></span><span class="keyword">(</span><span class="number">0</span><span class="keyword">,</span> <span class="number">100</span><span class="keyword">)</span><span class="keyword">)</span></div>
<p><img src='FOMC.solution-2.png' alt='' width='540' height='400' /></p></pre>
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