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comparison libs/commons-math-2.1/docs/apidocs/src-html/org/apache/commons/math/stat/ranking/RankingAlgorithm.html @ 13:cbf34dd4d7e6

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commons-math-2.1 added
author dwinter
date Tue, 04 Jan 2011 10:02:07 +0100
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12:970d26a94fb7 13:cbf34dd4d7e6
1 <HTML>
2 <BODY BGCOLOR="white">
3 <PRE>
4 <FONT color="green">001</FONT> /*<a name="line.1"></a>
5 <FONT color="green">002</FONT> * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a>
6 <FONT color="green">003</FONT> * contributor license agreements. See the NOTICE file distributed with<a name="line.3"></a>
7 <FONT color="green">004</FONT> * this work for additional information regarding copyright ownership.<a name="line.4"></a>
8 <FONT color="green">005</FONT> * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a>
9 <FONT color="green">006</FONT> * (the "License"); you may not use this file except in compliance with<a name="line.6"></a>
10 <FONT color="green">007</FONT> * the License. You may obtain a copy of the License at<a name="line.7"></a>
11 <FONT color="green">008</FONT> *<a name="line.8"></a>
12 <FONT color="green">009</FONT> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
13 <FONT color="green">010</FONT> *<a name="line.10"></a>
14 <FONT color="green">011</FONT> * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
15 <FONT color="green">012</FONT> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a>
16 <FONT color="green">013</FONT> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
17 <FONT color="green">014</FONT> * See the License for the specific language governing permissions and<a name="line.14"></a>
18 <FONT color="green">015</FONT> * limitations under the License.<a name="line.15"></a>
19 <FONT color="green">016</FONT> */<a name="line.16"></a>
20 <FONT color="green">017</FONT> <a name="line.17"></a>
21 <FONT color="green">018</FONT> package org.apache.commons.math.stat.ranking;<a name="line.18"></a>
22 <FONT color="green">019</FONT> <a name="line.19"></a>
23 <FONT color="green">020</FONT> /**<a name="line.20"></a>
24 <FONT color="green">021</FONT> * Interface representing a rank transformation.<a name="line.21"></a>
25 <FONT color="green">022</FONT> *<a name="line.22"></a>
26 <FONT color="green">023</FONT> * @since 2.0<a name="line.23"></a>
27 <FONT color="green">024</FONT> * @version $Revision: 811685 $ $Date: 2009-09-05 13:36:48 -0400 (Sat, 05 Sep 2009) $<a name="line.24"></a>
28 <FONT color="green">025</FONT> */<a name="line.25"></a>
29 <FONT color="green">026</FONT> public interface RankingAlgorithm {<a name="line.26"></a>
30 <FONT color="green">027</FONT> /**<a name="line.27"></a>
31 <FONT color="green">028</FONT> * &lt;p&gt;Performs a rank transformation on the input data, returning an array<a name="line.28"></a>
32 <FONT color="green">029</FONT> * of ranks.&lt;/p&gt;<a name="line.29"></a>
33 <FONT color="green">030</FONT> *<a name="line.30"></a>
34 <FONT color="green">031</FONT> * &lt;p&gt;Ranks should be 1-based - that is, the smallest value<a name="line.31"></a>
35 <FONT color="green">032</FONT> * returned in an array of ranks should be greater than or equal to one,<a name="line.32"></a>
36 <FONT color="green">033</FONT> * rather than 0. Ranks should in general take integer values, though<a name="line.33"></a>
37 <FONT color="green">034</FONT> * implementations may return averages or other floating point values<a name="line.34"></a>
38 <FONT color="green">035</FONT> * to resolve ties in the input data.&lt;/p&gt;<a name="line.35"></a>
39 <FONT color="green">036</FONT> *<a name="line.36"></a>
40 <FONT color="green">037</FONT> * @param data array of data to be ranked<a name="line.37"></a>
41 <FONT color="green">038</FONT> * @return an array of ranks corresponding to the elements of the input array<a name="line.38"></a>
42 <FONT color="green">039</FONT> */<a name="line.39"></a>
43 <FONT color="green">040</FONT> double[] rank (double[] data);<a name="line.40"></a>
44 <FONT color="green">041</FONT> }<a name="line.41"></a>
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105 </PRE>
106 </BODY>
107 </HTML>