01 /*
02 * Java Genetic Algorithm Library (jenetics-1.6.0).
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.jscience.mathematics.number.Float64;
23
24 import org.jenetics.util.Function;
25 import org.jenetics.util.Range;
26
27 /**
28 * Defines the <i>domain</i>, <i>PDF</i> and <i>CDF</i> of a probability
29 * distribution.
30 *
31 * @author <a href="mailto:franz.wilhelmstoetter@gmx.at">Franz Wilhelmstötter</a>
32 * @since 1.0
33 * @version 1.0 — <em>$Date: 2013-08-29 $</em>
34 */
35 public interface Distribution<C extends Comparable<? super C>> {
36
37 /**
38 * Return the domain of this probability distribution.
39 *
40 * @return the domain of this probability distribution.
41 */
42 public Range<C> getDomain();
43
44 /**
45 * Return a new instance of the <i>Cumulative Distribution Function</i> (CDF).
46 *
47 * @see <a href="http://en.wikipedia.org/wiki/Cumulative_distribution_function">CDF</a>
48 *
49 * @return the <i>Cumulative Distribution Function</i>.
50 */
51 public Function<C, Float64> getCDF();
52
53 /**
54 * Return a new instance of the <i>Probability Density Function</i> (PDF).
55 *
56 * @see <a href="http://en.wikipedia.org/wiki/Probability_density_function">PDF</a>
57 *
58 * @return the <i>Probability Density Function</i>.
59 */
60 public Function<C, Float64> getPDF();
61
62 }
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