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16 package org.apache.commons.math.distribution;
17
18 /**
19 * The Binomial Distribution.
20 *
21 * Instances of BinomialDistribution objects should be created using
22 * {@link DistributionFactory#createBinomialDistribution(int, double)}.
23 *
24 * <p>
25 * References:
26 * <ul>
27 * <li><a href="http://mathworld.wolfram.com/BinomialDistribution.html">
28 * Binomial Distribution</a></li>
29 * </ul>
30 * </p>
31 *
32 * @version $Revision: 155427 $ $Date: 2005-02-26 06:11:52 -0700 (Sat, 26 Feb 2005) $
33 */
34 public interface BinomialDistribution extends IntegerDistribution {
35 /**
36 * Access the number of trials for this distribution.
37 * @return the number of trials.
38 */
39 int getNumberOfTrials();
40
41 /**
42 * Access the probability of success for this distribution.
43 * @return the probability of success.
44 */
45 double getProbabilityOfSuccess();
46
47 /**
48 * Change the number of trials for this distribution.
49 * @param trials the new number of trials.
50 */
51 void setNumberOfTrials(int trials);
52
53 /**
54 * Change the probability of success for this distribution.
55 * @param p the new probability of success.
56 */
57 void setProbabilityOfSuccess(double p);
58 }