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          <li><a href="index.html"><i class="icon-home icon-white"></i> Index</a></li>
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    chemCal provides simple functions for plotting linear
calibration functions and estimating standard errors for measurements
according to the Handbook of Chemometrics and Qualimetrics: Part A
by Massart et al. There are also functions estimating the limit
of detection (LOD) and limit of quantification (LOQ).
The functions work on model objects from - optionally weighted - linear
regression (lm) or robust linear regression (rlm from the MASS package).

    <h2>Help topics</h2>

    <h3>Main functions</h3>
    <p>Essential functionality</p>

    
    <ul class="index">
        
      <li>
        <code><a href="inverse.predict.html">inverse.predict</a></code>(inverse.predict.lm, inverse.predict.rlm, inverse.predict.default)<br />Predict x from y for a linear calibration</li>
            
      <li>
        <code><a href="calplot.lm.html">calplot</a></code>(calplot.default, calplot.lm)<br />Plot calibration graphs from univariate linear models</li>
    
    </ul>
    <h3>LOD and LOQ</h3>
    <p>Limit of detection and limit of quantification</p>

    
    <ul class="index">
        
      <li>
        <code><a href="lod.html">lod</a></code>(lod.lm, lod.rlm, lod.default)<br />Estimate a limit of detection (LOD)</li>
            
      <li>
        <code><a href="loq.html">loq</a></code>(loq.lm, loq.rlm, loq.default)<br />Estimate a limit of quantification (LOQ)</li>
    
    </ul>
    <h3>Datasets</h3>
    <p>Example data</p>

    
    <ul class="index">
        
      <li>
        <code><a href="din32645.html">din32645</a></code><br />Calibration data from DIN 32645</li>
            
      <li>
        <code><a href="massart97ex1.html">massart97ex1</a></code><br />Calibration data from Massart et al. (1997), example 1</li>
    
    </ul>
    <h3>Other</h3>
    
    
    <ul class="index">
        
      <li>
        <code><a href="chemCal-package.html">chemCal-package</a></code><br />  Calibration functions for analytical chemistry
</li>
            
      <li>
        <code><a href="massart97ex3.html">massart97ex3</a></code><br />Calibration data from Massart et al. (1997), example 3</li>
    
    </ul>
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    <h2>Vignettes</h2>
    <ul>
      <li><a href="vignettes/chemCal.pdf">Short manual for the chemCal package</a></li>
    </ul>
        
    <h2>Dependencies</h2>
    <ul>
      
      
      <li><strong>Suggests</strong>: MASS</li>
      
    </ul>
    <h2>Authors</h2>
    <ul>
      <li><a href="mailto:jranke@uni-bremen.de">Johannes Ranke</a> [aut, cre, cph]</li>
    </ul>

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