Package weka.core

Examples of weka.core.Instance.classAttribute()

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    classifier.initialise("TestCreateInstances2", 0, assessors,0);
   
    Instance instance = classifier.constructInstance(new int []{1,0},true);
    Assert.assertFalse(instance.classIsMissing());Assert.assertEquals(3,instance.numValues());
    Assert.assertFalse(instance.hasMissingValue());
    Assert.assertTrue(instance.classAttribute().isNominal());
    Assert.assertEquals(2,instance.classAttribute().numValues());// true/false
    Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));
    Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(classifier.attributesOfAnInstance[0]));
    Assert.assertEquals(WekaDataCollector.ZERO,instance.stringValue(classifier.attributesOfAnInstance[1]));
  }
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    Instance instance = classifier.constructInstance(new int []{1,0},true);
    Assert.assertFalse(instance.classIsMissing());Assert.assertEquals(3,instance.numValues());
    Assert.assertFalse(instance.hasMissingValue());
    Assert.assertTrue(instance.classAttribute().isNominal());
    Assert.assertEquals(2,instance.classAttribute().numValues());// true/false
    Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));
    Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(classifier.attributesOfAnInstance[0]));
    Assert.assertEquals(WekaDataCollector.ZERO,instance.stringValue(classifier.attributesOfAnInstance[1]));
  }
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    Instance instance = classifier.constructInstance(new int []{1,0},true);
    Assert.assertFalse(instance.classIsMissing());Assert.assertEquals(3,instance.numValues());
    Assert.assertFalse(instance.hasMissingValue());
    Assert.assertTrue(instance.classAttribute().isNominal());
    Assert.assertEquals(2,instance.classAttribute().numValues());// true/false
    Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));
    Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(classifier.attributesOfAnInstance[0]));
    Assert.assertEquals(WekaDataCollector.ZERO,instance.stringValue(classifier.attributesOfAnInstance[1]));
  }

  /** Construction of instances. Same as TestCreateInstances2 but initialises with zero max number of values in the training set. */
 
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    Instance instance = classifier.constructInstance(new int []{1,0},true);
    Assert.assertFalse(instance.classIsMissing());Assert.assertEquals(3,instance.numValues());
    Assert.assertFalse(instance.hasMissingValue());
    Assert.assertTrue(instance.classAttribute().isNominal());
    Assert.assertEquals(2,instance.classAttribute().numValues());// true/false
    Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));
    Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(classifier.attributesOfAnInstance[0]));
    Assert.assertEquals(WekaDataCollector.ZERO,instance.stringValue(classifier.attributesOfAnInstance[1]));
  }

  /** Construction of instances. Same as TestCreateInstances2 but initialises with zero max number of values in the training set. */
 
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    classifier.initialise("TestCreateInstances2", 10, assessors,0);

    Instance instance = classifier.constructInstance(new int []{1,-1},true);
    Assert.assertFalse(instance.classIsMissing());Assert.assertEquals(3,instance.numValues());
    Assert.assertFalse(instance.hasMissingValue());
    Assert.assertTrue(instance.classAttribute().isNominal());
    Assert.assertEquals(2,instance.classAttribute().numValues());// true/false
    Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));

    Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(classifier.attributesOfAnInstance[0]));
    Assert.assertTrue(classifier.attributesOfAnInstance[0].isNominal());
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    Instance instance = classifier.constructInstance(new int []{1,-1},true);
    Assert.assertFalse(instance.classIsMissing());Assert.assertEquals(3,instance.numValues());
    Assert.assertFalse(instance.hasMissingValue());
    Assert.assertTrue(instance.classAttribute().isNominal());
    Assert.assertEquals(2,instance.classAttribute().numValues());// true/false
    Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));

    Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(classifier.attributesOfAnInstance[0]));
    Assert.assertTrue(classifier.attributesOfAnInstance[0].isNominal());
    Assert.assertEquals("REL conventional score",classifier.attributesOfAnInstance[0].name());
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    Instance instance = classifier.constructInstance(new int []{1,-1},true);
    Assert.assertFalse(instance.classIsMissing());Assert.assertEquals(3,instance.numValues());
    Assert.assertFalse(instance.hasMissingValue());
    Assert.assertTrue(instance.classAttribute().isNominal());
    Assert.assertEquals(2,instance.classAttribute().numValues());// true/false
    Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));

    Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(classifier.attributesOfAnInstance[0]));
    Assert.assertTrue(classifier.attributesOfAnInstance[0].isNominal());
    Assert.assertEquals("REL conventional score",classifier.attributesOfAnInstance[0].name());
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    Instance instance = classifier.constructInstance(new int []{1,-1},true);
    Assert.assertFalse(instance.classIsMissing());Assert.assertEquals(3,instance.numValues());
    Assert.assertFalse(instance.hasMissingValue());
    Assert.assertTrue(instance.classAttribute().isNominal());
    Assert.assertEquals(2,instance.classAttribute().numValues());// true/false
    Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));

    Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(classifier.attributesOfAnInstance[0]));
    Assert.assertTrue(classifier.attributesOfAnInstance[0].isNominal());
    Assert.assertEquals("REL conventional score",classifier.attributesOfAnInstance[0].name());
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    classifier.initialise("TestCreateInstances2", 10, assessors,0);
   
    Instance instance = classifier.constructInstance(new int []{1,0,0,-1}, true);
    Assert.assertFalse(instance.classIsMissing());Assert.assertEquals(5,instance.numValues());
    Assert.assertFalse(instance.hasMissingValue());
    Assert.assertTrue(instance.classAttribute().isNominal());
    Assert.assertEquals(2,instance.classAttribute().numValues());// true/false
    Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));

    Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(classifier.attributesOfAnInstance[0]));
    Assert.assertTrue(classifier.attributesOfAnInstance[0].isNominal());
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    Instance instance = classifier.constructInstance(new int []{1,0,0,-1}, true);
    Assert.assertFalse(instance.classIsMissing());Assert.assertEquals(5,instance.numValues());
    Assert.assertFalse(instance.hasMissingValue());
    Assert.assertTrue(instance.classAttribute().isNominal());
    Assert.assertEquals(2,instance.classAttribute().numValues());// true/false
    Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));

    Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(classifier.attributesOfAnInstance[0]));
    Assert.assertTrue(classifier.attributesOfAnInstance[0].isNominal());
    Assert.assertEquals("REL conventional score",classifier.attributesOfAnInstance[0].name());
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