aboutsummaryrefslogtreecommitdiff
path: root/inst/web/massart97ex3.html
diff options
context:
space:
mode:
authorJohannes Ranke <jranke@uni-bremen.de>2016-10-04 08:46:58 +0200
committerJohannes Ranke <jranke@uni-bremen.de>2016-10-04 08:46:58 +0200
commitcf329866248fab96ea60d1d7ee20562a3da2eb54 (patch)
tree9c9785ca42917a30f37ed7cdab352abbba34ce21 /inst/web/massart97ex3.html
parentb31824f420c9d904ab5f46774183a59e3b86cedd (diff)
Remove old version of static documentation
Diffstat (limited to 'inst/web/massart97ex3.html')
-rw-r--r--inst/web/massart97ex3.html198
1 files changed, 0 insertions, 198 deletions
diff --git a/inst/web/massart97ex3.html b/inst/web/massart97ex3.html
deleted file mode 100644
index 45c0999..0000000
--- a/inst/web/massart97ex3.html
+++ /dev/null
@@ -1,198 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
- <head>
- <meta charset="utf-8">
-<title>massart97ex3. chemCal 0.1-37</title>
-<meta name="viewport" content="width=device-width, initial-scale=1.0">
-<meta name="author" content="">
-
-<link href="css/bootstrap.css" rel="stylesheet">
-<link href="css/bootstrap-responsive.css" rel="stylesheet">
-<link href="css/highlight.css" rel="stylesheet">
-<link href="css/staticdocs.css" rel="stylesheet">
-
-<!--[if lt IE 9]>
- <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
-<![endif]-->
-
-<script type="text/x-mathjax-config">
- MathJax.Hub.Config({
- tex2jax: {
- inlineMath: [ ['$','$'], ["\\(","\\)"] ],
- processEscapes: true
- }
- });
-</script>
-<script type="text/javascript"
- src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML">
-</script>
- </head>
-
- <body>
- <div class="navbar">
- <div class="navbar-inner">
- <div class="container">
- <a class="brand" href="#">chemCal 0.1-37</a>
- <div class="nav">
- <ul class="nav">
- <li><a href="index.html"><i class="icon-home icon-white"></i> Index</a></li>
- </ul>
- </div>
- </div>
- </div>
-</div>
-
- <div class="container">
- <header>
-
- </header>
-
- <h1>Calibration data from Massart et al. (1997), example 3</h1>
-
-<div class="row">
- <div class="span8">
- <h2>Usage</h2>
- <pre><div>data(massart97ex3)</div></pre>
-
- <div class="Description">
- <h2>Description</h2>
-
- <p>Sample dataset from p. 188 to test the package.</p>
-
- </div>
-
- <div class="Format">
- <h2>Format</h2>
-
- <p>A dataframe containing 6 levels of x values with 5
- observations of y for each level.</p>
-
- </div>
-
- <div class="Source">
- <h2>Source</h2>
-
- <p>Massart, L.M, Vandenginste, B.G.M., Buydens, L.M.C., De Jong, S., Lewi, P.J.,
- Smeyers-Verbeke, J. (1997) Handbook of Chemometrics and Qualimetrics: Part A,
- Chapter 8.</p>
-
- </div>
-
- <h2 id="examples">Examples</h2>
- <pre class="examples"><div class='input'>data(massart97ex3)
-attach(massart97ex3)
-</div>
-<strong class='message'>Die folgenden Objekte sind maskiert von massart97ex3 (pos = 3):
-
- x, y
-</strong>
-<div class='input'>yx &lt;- split(y, x)
-ybar &lt;- sapply(yx, mean)
-s &lt;- round(sapply(yx, sd), digits = 2)
-w &lt;- round(1 / (s^2), digits = 3)
-weights &lt;- w[factor(x)]
-m &lt;- lm(y ~ x, w = weights)
-calplot(m)
-</div>
-<strong class='warning'>Warning message:
-Assuming constant prediction variance even though model fit is weighted
-</strong>
-<p><img src='massart97ex3-5.png' alt='' width='540' height='400' /></p>
-<div class='input'>
-# The following concords with the book p. 200
-inverse.predict(m, 15, ws = 1.67) # 5.9 +- 2.5
-</div>
-<div class='output'>$Prediction
-[1] 5.865367
-
-$`Standard Error`
-[1] 0.8926109
-
-$Confidence
-[1] 2.478285
-
-$`Confidence Limits`
-[1] 3.387082 8.343652
-
-</div>
-<div class='input'>inverse.predict(m, 90, ws = 0.145) # 44.1 +- 7.9
-</div>
-<div class='output'>$Prediction
-[1] 44.06025
-
-$`Standard Error`
-[1] 2.829162
-
-$Confidence
-[1] 7.855012
-
-$`Confidence Limits`
-[1] 36.20523 51.91526
-
-</div>
-<div class='input'>
-# The LOD is only calculated for models from unweighted regression
-# with this version of chemCal
-m0 &lt;- lm(y ~ x)
-lod(m0)
-</div>
-<div class='output'>$x
-[1] 5.407085
-
-$y
- 1
-13.63911
-
-</div>
-<div class='input'>
-# Limit of quantification from unweighted regression
-loq(m0)
-</div>
-<div class='output'>$x
-[1] 13.97764
-
-$y
- 1
-30.6235
-
-</div>
-<div class='input'>
-# For calculating the limit of quantification from a model from weighted
-# regression, we need to supply weights, internally used for inverse.predict
-# If we are not using a variance function, we can use the weight from
-# the above example as a first approximation (x = 15 is close to our
-# loq approx 14 from above).
-loq(m, w.loq = 1.67)
-</div>
-<div class='output'>$x
-[1] 7.346195
-
-$y
- 1
-17.90777
-
-</div>
-<div class='input'># The weight for the loq should therefore be derived at x = 7.3 instead
-# of 15, but the graphical procedure of Massart (p. 201) to derive the
-# variances on which the weights are based is quite inaccurate anyway.
-</div></pre>
- </div>
- <div class="span4">
- <!-- <ul>
- <li>massart97ex3</li>
- </ul>
- <ul>
- <li>datasets</li>
- </ul> -->
-
-
- </div>
-</div>
-
- <footer>
- <p class="pull-right"><a href="#">Back to top</a></p>
-<p>Built by <a href="https://github.com/hadley/staticdocs">staticdocs</a>. Styled with <a href="http://twitter.github.com/bootstrap">bootstrap</a>.</p>
- </footer>
- </div>
- </body>
-</html> \ No newline at end of file

Contact - Imprint