Package cc.mallet.types

Examples of cc.mallet.types.HashedSparseVector.numLocations()

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    s.plusEqualsSparse (s4, 1.0);
    checkAnswer (s, new double[] { 3, 5, 7.2, 6.8, 8.2 }); 

    HashedSparseVector s5 = new HashedSparseVector (new int[] { 7 }, new double[] { 0.2 });
    s5.plusEqualsSparse (s1);
    for (int i = 0; i < s5.numLocations(); i++) {
      assertEquals (7, s5.indexAtLocation (i));
      assertEquals (3.2, s5.valueAtLocation (i), 0.0);
    }

    HashedSparseVector s6 = new HashedSparseVector (new int[] { 7 }, new double[] { 0.2 });
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      assertEquals (3.2, s5.valueAtLocation (i), 0.0);
    }

    HashedSparseVector s6 = new HashedSparseVector (new int[] { 7 }, new double[] { 0.2 });
    s6.plusEqualsSparse (s1, 3.5);
    for (int i = 0; i < s6.numLocations(); i++) {
      assertEquals (7, s6.indexAtLocation (i));
      assertEquals (10.7, s6.valueAtLocation (i), 0.0);
    }
  }
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  {
    HashedSparseVector s = (HashedSparseVector) s1.cloneMatrix ();
    s.incrementValue (5, 0.75);

    double[] ans = new double[] {1, 2.75, 3, 4, 5};
    for (int i = 0; i < s.numLocations(); i++) {
      assertTrue (s.valueAtLocation (i) == ans[i]);
    }
  }

 
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  {
    HashedSparseVector s = (HashedSparseVector) s1.cloneMatrix ();
    s.setValue (5, 0.3);

    double[] ans = new double[] {1, 0.3, 3, 4, 5};
    for (int i = 0; i < s.numLocations(); i++) {
      assertTrue (s.valueAtLocation (i) == ans[i]);
    }
  }

  private static int[] idx2 = { 3, 7, 12, 15, 18 };
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  }

  public void testCloneMatrixZeroed ()
  {
    HashedSparseVector s = (HashedSparseVector) s1.cloneMatrixZeroed ();
    for (int i = 0; i < s.numLocations(); i++) {
      assertTrue (s.valueAtLocation (i) == 0.0);
      assertTrue (s.indexAtLocation (i) == idxs [i]);
    }
  }
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  public void testSerializable () throws Exception
  {
    // Write out the sparse vector s1
    HashedSparseVector s2 = (HashedSparseVector) TestSerializable.cloneViaSerialization (s1);
    assertEquals (s1.numLocations (), s2.numLocations ());
    for (int loc = 0; loc < s1.numLocations (); loc++) {
      assertEquals (s1.valueAtLocation (loc), s2.valueAtLocation (loc), 0.001);
    }
  }
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