Esempio n. 1
0
  @Test
  public void testInverse2x2() {
    double tol = 0.001;
    Map<Key, Value> input = new TreeMap<>(TestUtil.COMPARE_KEY_TO_COLQ);
    input.put(new Key("1", "", "1"), new Value("4".getBytes()));
    input.put(new Key("1", "", "2"), new Value("3".getBytes()));
    input.put(new Key("2", "", "1"), new Value("1".getBytes()));
    input.put(new Key("2", "", "2"), new Value("1".getBytes()));
    Map<Key, Value> expect = new TreeMap<>(TestUtil.COMPARE_KEY_TO_COLQ);
    expect.put(new Key("1", "", "1"), new Value("1 ".getBytes()));
    expect.put(new Key("1", "", "2"), new Value("-3".getBytes()));
    expect.put(new Key("2", "", "1"), new Value("-1".getBytes()));
    expect.put(new Key("2", "", "2"), new Value("4 ".getBytes()));

    RealMatrix matrix = MemMatrixUtil.buildMatrix(input.entrySet().iterator(), 2);
    Assert.assertEquals(2, matrix.getRowDimension());
    Assert.assertEquals(2, matrix.getColumnDimension());
    Assert.assertEquals(4, matrix.getEntry(0, 0), tol);
    Assert.assertEquals(3, matrix.getEntry(0, 1), tol);
    Assert.assertEquals(1, matrix.getEntry(1, 0), tol);
    Assert.assertEquals(1, matrix.getEntry(1, 1), tol);

    matrix = MemMatrixUtil.doInverse(matrix, -1);
    Assert.assertEquals(2, matrix.getRowDimension());
    Assert.assertEquals(2, matrix.getColumnDimension());
    Assert.assertEquals(1, matrix.getEntry(0, 0), tol);
    Assert.assertEquals(-3, matrix.getEntry(0, 1), tol);
    Assert.assertEquals(-1, matrix.getEntry(1, 0), tol);
    Assert.assertEquals(4, matrix.getEntry(1, 1), tol);

    SortedMap<Key, Value> back =
        MemMatrixUtil.matrixToMap(new TreeMap<Key, Value>(TestUtil.COMPARE_KEY_TO_COLQ), matrix);
    TestUtil.assertEqualDoubleMap(expect, back);
  }
Esempio n. 2
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  @Test
  public void testInverseIdentity() {
    double tol = 0.00001;
    Map<Key, Value> input = new TreeMap<>(TestUtil.COMPARE_KEY_TO_COLQ);
    input.put(new Key("1", "", "1"), new Value("1".getBytes()));
    //    input.put(new Key("1", "", "2"), new Value("1".getBytes()));
    //    input.put(new Key("2", "", "1"), new Value("1".getBytes()));
    input.put(new Key("2", "", "2"), new Value("1".getBytes()));

    RealMatrix matrix = MemMatrixUtil.buildMatrix(input.entrySet().iterator(), 2);
    Assert.assertEquals(2, matrix.getRowDimension());
    Assert.assertEquals(2, matrix.getColumnDimension());
    Assert.assertEquals(1, matrix.getEntry(0, 0), tol);
    Assert.assertEquals(0, matrix.getEntry(0, 1), tol);
    Assert.assertEquals(0, matrix.getEntry(1, 0), tol);
    Assert.assertEquals(1, matrix.getEntry(1, 1), tol);

    matrix = MemMatrixUtil.doInverse(matrix, -1);
    Assert.assertEquals(2, matrix.getRowDimension());
    Assert.assertEquals(2, matrix.getColumnDimension());
    Assert.assertEquals(1, matrix.getEntry(0, 0), tol);
    Assert.assertEquals(0, matrix.getEntry(0, 1), tol);
    Assert.assertEquals(0, matrix.getEntry(1, 0), tol);
    Assert.assertEquals(1, matrix.getEntry(1, 1), tol);

    SortedMap<Key, Value> back =
        MemMatrixUtil.matrixToMap(new TreeMap<Key, Value>(TestUtil.COMPARE_KEY_TO_COLQ), matrix);
    TestUtil.assertEqualDoubleMap(input, back);
    //    Assert.assertEquals(1, Double.parseDouble(new String(back.get(new Key("1", "",
    // "1")).get())), tol);
    //    Assert.assertEquals(1, Double.parseDouble(new String(back.get(new Key("2", "",
    // "2")).get())), tol);
  }