1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>geomean. pfm 0.3-1</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="author" content="
Johannes Ranke
">
<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="#">pfm 0.3-1</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>Calculate the geometric mean</h1>
<div class="row">
<div class="span8">
<h2>Usage</h2>
<pre><div>geomean(x, na.rm = TRUE)</div></pre>
<h2>Arguments</h2>
<dl>
<dt>x</dt>
<dd>Vector of numbers</dd>
<dt>na.rm</dt>
<dd>Should NA values be omitted?</dd>
</dl>
<div class="Value">
<h2>Value</h2>
<p><dl>
The geometric mean
</dl></p>
</div>
<div class="Description">
<h2>Description</h2>
<p>Based on some posts in a thread on Stackoverflow
<a href = 'http://stackoverflow.com/questions/2602583/geometric-mean-is-there-a-built-in'>http://stackoverflow.com/questions/2602583/geometric-mean-is-there-a-built-in</a>
This function checks for negative values, removes NA values per default and
returns 0 if at least one element of the vector is 0.</p>
</div>
<h2 id="examples">Examples</h2>
<pre class="examples"><div class='input'>geomean(c(1, 3, 9))
</div>
<div class='output'>[1] 3
</div>
<div class='input'>geomean(c(1, 3, NA, 9))
</div>
<div class='output'>[1] 3
</div>
<div class='input'>## Not run: geomean(c(1, -3, 9)) # returns an error
</div></pre>
</div>
<div class="span4">
<!-- <ul>
<li>geomean</li>
</ul>
<ul>
</ul> -->
<h2>Author</h2>
Johannes Ranke
</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>
|
