Examples of weka.core.Instance.stringValue()

weka.core.Instance.stringValue()
Returns the value of a nominal, string, date, or relational attribute for the instance as a string. @param attIndex the attribute's index @return the value as a string @throws IllegalArgumentException if the attribute is not a nominal,string, date, or relation-valued attribute. @throws UnassignedDatasetException if the instance doesn't belongto a dataset.

    Enumeration<Instance> instEnum = testClassifier.trainingData.enumerateInstances();


    {// pairA - the correct pair
      Instance instance = instEnum.nextElement();
      Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));
      Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(testClassifier.attributesOfAnInstance[0]));
      Assert.assertEquals(WekaDataCollector.MINUSONE,instance.stringValue(testClassifier.attributesOfAnInstance[1]));
    }
    
    {// pairB - another correct pair
      Instance instance = instEnum.nextElement();

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    {// pairA - the correct pair
      Instance instance = instEnum.nextElement();
      Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));
      Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(testClassifier.attributesOfAnInstance[0]));
      Assert.assertEquals(WekaDataCollector.MINUSONE,instance.stringValue(testClassifier.attributesOfAnInstance[1]));
    }
    
    {// pairB - another correct pair
      Instance instance = instEnum.nextElement();
      Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));

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    }
    
    {// pairB - another correct pair
      Instance instance = instEnum.nextElement();
      Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));
      Assert.assertEquals(WekaDataCollector.MINUSONE,instance.stringValue(testClassifier.attributesOfAnInstance[0]));
      Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(testClassifier.attributesOfAnInstance[1]));
    }
    
    {// pairC - incorrect pair
      Instance instance = instEnum.nextElement();

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    {// pairB - another correct pair
      Instance instance = instEnum.nextElement();
      Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));
      Assert.assertEquals(WekaDataCollector.MINUSONE,instance.stringValue(testClassifier.attributesOfAnInstance[0]));
      Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(testClassifier.attributesOfAnInstance[1]));
    }
    
    {// pairC - incorrect pair
      Instance instance = instEnum.nextElement();
      Assert.assertEquals("false",instance.classAttribute().value((int) instance.value(instance.classAttribute())));

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    }
    
    {// pairC - incorrect pair
      Instance instance = instEnum.nextElement();
      Assert.assertEquals("false",instance.classAttribute().value((int) instance.value(instance.classAttribute())));
      Assert.assertEquals(WekaDataCollector.MINUSONE,instance.stringValue(testClassifier.attributesOfAnInstance[0]));
      Assert.assertEquals(WekaDataCollector.MINUSONE,instance.stringValue(testClassifier.attributesOfAnInstance[1]));
    }
    
    Assert.assertFalse(instEnum.hasMoreElements());
  }

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    {// pairC - incorrect pair
      Instance instance = instEnum.nextElement();
      Assert.assertEquals("false",instance.classAttribute().value((int) instance.value(instance.classAttribute())));
      Assert.assertEquals(WekaDataCollector.MINUSONE,instance.stringValue(testClassifier.attributesOfAnInstance[0]));
      Assert.assertEquals(WekaDataCollector.MINUSONE,instance.stringValue(testClassifier.attributesOfAnInstance[1]));
    }
    
    Assert.assertFalse(instEnum.hasMoreElements());
  }

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    Enumeration<Instance> instEnum = testClassifier.trainingData.enumerateInstances();


    {// pairA - the correct pair, only compared with B and C
      Instance instance = instEnum.nextElement();
      Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));
      Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(testClassifier.attributesOfAnInstance[0]));
      Assert.assertEquals(WekaDataCollector.MINUSONE,instance.stringValue(testClassifier.attributesOfAnInstance[1]));
      
      Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(testClassifier.attributesOfAnInstance[2]));
      Assert.assertEquals(WekaDataCollector.ZERO,instance.stringValue(testClassifier.attributesOfAnInstance[3]));
    }

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    {// pairA - the correct pair, only compared with B and C
      Instance instance = instEnum.nextElement();
      Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));
      Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(testClassifier.attributesOfAnInstance[0]));
      Assert.assertEquals(WekaDataCollector.MINUSONE,instance.stringValue(testClassifier.attributesOfAnInstance[1]));
      
      Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(testClassifier.attributesOfAnInstance[2]));
      Assert.assertEquals(WekaDataCollector.ZERO,instance.stringValue(testClassifier.attributesOfAnInstance[3]));
    }

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      Instance instance = instEnum.nextElement();
      Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));
      Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(testClassifier.attributesOfAnInstance[0]));
      Assert.assertEquals(WekaDataCollector.MINUSONE,instance.stringValue(testClassifier.attributesOfAnInstance[1]));
      
      Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(testClassifier.attributesOfAnInstance[2]));
      Assert.assertEquals(WekaDataCollector.ZERO,instance.stringValue(testClassifier.attributesOfAnInstance[3]));
    }
    
    {// pairB - another correct pair, only compared with A and C
      Instance instance = instEnum.nextElement();

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      Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));
      Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(testClassifier.attributesOfAnInstance[0]));
      Assert.assertEquals(WekaDataCollector.MINUSONE,instance.stringValue(testClassifier.attributesOfAnInstance[1]));
      
      Assert.assertEquals(WekaDataCollector.ONE,instance.stringValue(testClassifier.attributesOfAnInstance[2]));
      Assert.assertEquals(WekaDataCollector.ZERO,instance.stringValue(testClassifier.attributesOfAnInstance[3]));
    }
    
    {// pairB - another correct pair, only compared with A and C
      Instance instance = instEnum.nextElement();
      Assert.assertEquals("true",instance.classAttribute().value((int) instance.value(instance.classAttribute())));

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