1 package nl.tudelft.simulation.jstats.distributions;
2
3 import nl.tudelft.simulation.jstats.streams.StreamInterface;
4
5 /**
6 * The discrete distribution. For more information on this distribution see
7 * <a href="https://mathworld.wolfram.com/DiscreteDistribution.html"> https://mathworld.wolfram.com/DiscreteDistribution.html
8 * </a>
9 * <p>
10 * Copyright (c) 2002-2025 Delft University of Technology, Jaffalaan 5, 2628 BX Delft, the Netherlands. All rights reserved. See
11 * for project information <a href="https://simulation.tudelft.nl/dsol/manual/" target="_blank">DSOL Manual</a>. The DSOL
12 * project is distributed under a three-clause BSD-style license, which can be found at
13 * <a href="https://simulation.tudelft.nl/dsol/docs/latest/license.html" target="_blank">DSOL License</a>.
14 * </p>
15 * @author <a href="https://www.linkedin.com/in/peterhmjacobs">Peter Jacobs </a>
16 * @author <a href="https://github.com/averbraeck">Alexander Verbraeck</a>
17 */
18 public abstract class DistDiscrete extends Dist
19 {
20 /** */
21 private static final long serialVersionUID = 1L;
22
23 /**
24 * constructs a new discrete distribution.
25 * @param stream StreamInterface; the random number stream
26 */
27 public DistDiscrete(final StreamInterface stream)
28 {
29 super(stream);
30 }
31
32 /**
33 * draws the next long from the stream.
34 * @return long
35 */
36 public abstract long draw();
37
38 /**
39 * returns the probability of the observation in this particular distribution.
40 * @param observation long; the discrete observation.
41 * @return double the probability.
42 */
43 public abstract double probability(long observation);
44 }