Examples with Graph org.gephi.graph.api.Graph used on opensource projects

Example 71 with Graph

use of org.gephi.graph.api.Graph in project gephi by gephi.

the class WeightedDegreeNGTest method testCompleteGraphDegree.

@Test
public void testCompleteGraphDegree() {
    GraphModel graphModel = GraphGenerator.generateCompleteUndirectedGraph(5);
    Graph graph = graphModel.getGraph();
    Node n = graph.getNode("2");
    WeightedDegree d = new WeightedDegree();
    d.execute(graph);
    assertEquals(n.getAttribute(WeightedDegree.WDEGREE), 4.0);
}

Example 72 with Graph

use of org.gephi.graph.api.Graph in project gephi by gephi.

the class HitsNGTest method testStarGraphHits.

@Test
public void testStarGraphHits() {
    GraphModel graphModel = GraphGenerator.generateStarUndirectedGraph(5);
    Graph graph = graphModel.getUndirectedGraph();
    Hits hit = new Hits();
    double[] authority = new double[6];
    double[] hubs = new double[6];
    HashMap<Node, Integer> indices = hit.createIndicesMap(graph);
    hit.calculateHits(graph, hubs, authority, indices, false, EPSILON);
    Node n1 = graph.getNode("0");
    Node n3 = graph.getNode("2");
    Node n4 = graph.getNode("3");
    int index1 = indices.get(n1);
    int index3 = indices.get(n3);
    int index4 = indices.get(n4);
    double hub1 = hubs[index1];
    double hub3 = hubs[index3];
    double auth1 = authority[index1];
    double auth4 = authority[index4];
    assertEquals(hub1, 0.4082);
    assertEquals(auth1, 0.9128);
    assertEquals(auth4, 0.1825);
    assertEquals(hub1, hub3);
}

Example 73 with Graph

use of org.gephi.graph.api.Graph in project gephi by gephi.

the class HitsNGTest method testTwoConnectedNodesHits.

@Test
public void testTwoConnectedNodesHits() {
    GraphModel graphModel = GraphGenerator.generateCompleteUndirectedGraph(2);
    Graph graph = graphModel.getUndirectedGraph();
    Hits hit = new Hits();
    double[] authority = new double[2];
    double[] hubs = new double[2];
    HashMap<Node, Integer> indices = hit.createIndicesMap(graph);
    hit.calculateHits(graph, hubs, authority, indices, false, EPSILON);
    Node n1 = graph.getNode("0");
    Node n2 = graph.getNode("1");
    int index1 = indices.get(n1);
    int index2 = indices.get(n2);
    double hub1 = hubs[index1];
    double auth2 = authority[index2];
    assertEquals(hub1, 0.7071);
    assertEquals(auth2, 0.7071);
}

Example 74 with Graph

use of org.gephi.graph.api.Graph in project gephi by gephi.

the class HitsNGTest method testCompleteGraphHits.

@Test
public void testCompleteGraphHits() {
    GraphModel graphModel = GraphGenerator.generateCompleteUndirectedGraph(5);
    Graph graph = graphModel.getUndirectedGraph();
    Hits hit = new Hits();
    double[] authority = new double[5];
    double[] hubs = new double[5];
    HashMap<Node, Integer> indices = hit.createIndicesMap(graph);
    hit.calculateHits(graph, hubs, authority, indices, false, EPSILON);
    Node n1 = graph.getNode("0");
    Node n5 = graph.getNode("4");
    int index1 = indices.get(n1);
    int index5 = indices.get(n5);
    double hub1 = hubs[index1];
    double auth5 = authority[index5];
    assertEquals(hub1, 0.4472);
    assertEquals(auth5, 0.4472);
}

Example 75 with Graph

use of org.gephi.graph.api.Graph in project gephi by gephi.

the class HitsNGTest method testNullGraphHits.

@Test
public void testNullGraphHits() {
    GraphModel graphModel = GraphGenerator.generateNullUndirectedGraph(5);
    Graph graph = graphModel.getUndirectedGraph();
    Hits hit = new Hits();
    double[] authority = new double[5];
    double[] hubs = new double[5];
    HashMap<Node, Integer> indices = hit.createIndicesMap(graph);
    hit.calculateHits(graph, hubs, authority, indices, false, EPSILON);
    Node n2 = graph.getNode("1");
    Node n3 = graph.getNode("2");
    int index2 = indices.get(n2);
    int index3 = indices.get(n3);
    double hub2 = hubs[index2];
    double auth3 = authority[index3];
    assertEquals(hub2, 0.0);
    assertEquals(auth3, 0.0);
}