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<title>Linear-logistic function — linlogitf • drfit</title>

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  at subtoxic doses." />
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    <h1>Linear-logistic function</h1>
    
    <div class="hidden name"><code>linlogitf.Rd</code></div>
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    <div class="ref-description">
    
    <p>Helper function describing a special type of dose-response curves, showing a stimulus
  at subtoxic doses.</p>
    
    </div>

    <pre class="usage"><span class='fu'>linlogitf</span>(<span class='no'>x</span>,<span class='no'>k</span>,<span class='no'>f</span>,<span class='no'>mu</span>,<span class='no'>b</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>x</th>
      <td><p>In this context, the x variable is the dose.</p></td>
    </tr>
    <tr>
      <th>k</th>
      <td><p>In the drfit functions, k is set to 1.</p></td>
    </tr>
    <tr>
      <th>f</th>
      <td><p>One of the parameters describing the curve shape.</p></td>
    </tr>
    <tr>
      <th>mu</th>
      <td><p>The parameter describing the location of the curve (log ED50).</p></td>
    </tr>
    <tr>
      <th>b</th>
      <td><p>One of the parameters describing the curve shape.</p></td>
    </tr>
    </table>
    
    <h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>

    <p>The response at dose x.</p>
    
    <h2 class="hasAnchor" id="references"><a class="anchor" href="#references"></a>References</h2>

    <p>van Ewijk, P. H. and Hoekstra, J. A. (1993) <em>Ecotox Environ Safety</em>
  <b>25</b> 25-32</p>
    

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    <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="#references">References</a></li>
          </ul>

    <h2>Author</h2>
    
  Johannes Ranke
  <a href='mailto:jranke@uni-bremen.de'>jranke@uni-bremen.de</a>

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