01 /*
02 * Java Genetic Algorithm Library (jenetics-2.0.2).
03 * Copyright (c) 2007-2014 Franz Wilhelmstötter
04 *
05 * Licensed under the Apache License, Version 2.0 (the "License");
06 * you may not use this file except in compliance with the License.
07 * You may obtain a copy of the License at
08 *
09 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 * Author:
18 * Franz Wilhelmstötter (franz.wilhelmstoetter@gmx.at)
19 */
20 package org.jenetics.stat;
21
22 import org.jenetics.util.Function;
23 import org.jenetics.util.Range;
24
25 /**
26 * Defines the <i>domain</i>, <i>PDF</i> and <i>CDF</i> of a probability
27 * distribution.
28 *
29 * @author <a href="mailto:franz.wilhelmstoetter@gmx.at">Franz Wilhelmstötter</a>
30 * @since 1.0
31 * @version 2.0 — <em>$Date: 2014-03-10 $</em>
32 */
33 public interface Distribution<C extends Comparable<? super C>> {
34
35 /**
36 * Return the domain of this probability distribution.
37 *
38 * @return the domain of this probability distribution.
39 */
40 public Range<C> getDomain();
41
42 /**
43 * Return a new instance of the <i>Cumulative Distribution Function</i> (CDF).
44 *
45 * @see <a href="http://en.wikipedia.org/wiki/Cumulative_distribution_function">CDF</a>
46 *
47 * @return the <i>Cumulative Distribution Function</i>.
48 */
49 public Function<C, Double> getCDF();
50
51 /**
52 * Return a new instance of the <i>Probability Density Function</i> (PDF).
53 *
54 * @see <a href="http://en.wikipedia.org/wiki/Probability_density_function">PDF</a>
55 *
56 * @return the <i>Probability Density Function</i>.
57 */
58 public Function<C, Double> getPDF();
59
60 }
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