Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||
DiscreteDistribution |
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| 1.0;1 |
1 | /* |
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2 | * Copyright 2003-2004 The Apache Software Foundation. |
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3 | * |
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4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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5 | * you may not use this file except in compliance with the License. |
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6 | * You may obtain a copy of the License at |
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7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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9 | * |
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10 | * Unless required by applicable law or agreed to in writing, software |
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11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 | * See the License for the specific language governing permissions and |
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14 | * limitations under the License. |
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15 | */ |
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16 | package org.apache.commons.math.distribution; |
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17 | ||
18 | ||
19 | /** |
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20 | * Base interface for discrete distributions. |
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21 | * |
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22 | * @version $Revision$ $Date: 2005-02-26 05:11:52 -0800 (Sat, 26 Feb 2005) $ |
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23 | */ |
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24 | public interface DiscreteDistribution extends Distribution { |
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25 | /** |
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26 | * For a random variable X whose values are distributed according |
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27 | * to this distribution, this method returns P(X = x). In other words, this |
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28 | * method represents the probability mass function, or PMF for the distribution. |
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29 | * |
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30 | * @param x the value at which the probability mass function is evaluated. |
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31 | * @return the value of the probability mass function at x |
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32 | */ |
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33 | double probability(double x); |
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34 | } |