blob: 8cf4b2414d9e88514952fa1bacaa3825fd98e52a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
package de.lmu.ifi.dbs.elki.data.synthetic.bymodel;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2015
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.util.Collections;
import java.util.List;
import de.lmu.ifi.dbs.elki.data.model.ClusterModel;
import de.lmu.ifi.dbs.elki.data.model.Model;
import de.lmu.ifi.dbs.elki.math.linearalgebra.Vector;
/**
* Class for static clusters, that is an implementation of GeneratorInterface
* that will return only a given set of points.
*
* @author Erich Schubert
* @since 0.2
*/
public class GeneratorStatic implements GeneratorInterface {
/**
* Cluster name
*/
public String name;
/**
* Cluster points
*/
public List<Vector> points;
/**
* Construct generator using given name and points
*
* @param name Cluster name
* @param points Cluster points
*/
public GeneratorStatic(String name, List<Vector> points) {
super();
this.name = name;
this.points = points;
}
/**
* "Generate" new cluster points. Static generators always return their
* predefined set of points.
*
* @param count parameter is ignored.
*/
@Override
public List<Vector> generate(int count) {
return Collections.unmodifiableList(points);
}
@Override
public double getDensity(Vector p) {
for(Vector my : points) {
if(my.equals(p)) {
return Double.POSITIVE_INFINITY;
}
}
return 0.0;
}
@Override
public int getDim() {
return points.get(0).getDimensionality();
}
@Override
public String getName() {
return name;
}
@Override
public int getSize() {
return points.size();
}
@Override
public Model makeModel() {
return ClusterModel.CLUSTER;
}
}
|
