Java Code Examples for org.apache.flink.api.java.summarize.StringColumnSummary

The following examples show how to use org.apache.flink.api.java.summarize.StringColumnSummary. These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source Project: Flink-CEPplus   Source File: StringSummaryAggregator.java    License: Apache License 2.0 6 votes vote down vote up
@Override
public void combine(Aggregator<String, StringColumnSummary> otherSameType) {
	StringSummaryAggregator other = (StringSummaryAggregator) otherSameType;

	nullCount += other.nullCount;

	minStringLength = Math.min(minStringLength, other.minStringLength);
	maxStringLength = Math.max(maxStringLength, other.maxStringLength);

	if (nonNullCount == 0) {
		nonNullCount = other.nonNullCount;
		emptyCount = other.emptyCount;
		meanLength = other.meanLength;

	}
	else if (other.nonNullCount != 0) {
		long combinedCount = nonNullCount + other.nonNullCount;

		emptyCount += other.emptyCount;

		double deltaMean = other.meanLength.value() - meanLength.value();
		meanLength = meanLength.add(deltaMean * other.nonNullCount / combinedCount);
		nonNullCount = combinedCount;
	}
}
 
Example 2
Source Project: Flink-CEPplus   Source File: StringSummaryAggregatorTest.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Helper method for summarizing a list of values.
 *
 * <p>This method breaks the rule of "testing only one thing" by aggregating and combining
 * a bunch of different ways.
 */
protected StringColumnSummary summarize(String... values) {

	return new AggregateCombineHarness<String, StringColumnSummary, StringSummaryAggregator>(){

		@Override
		protected void compareResults(StringColumnSummary result1, StringColumnSummary result2) {
			Assert.assertEquals(result1.getEmptyCount(), result2.getEmptyCount());
			Assert.assertEquals(result1.getMaxLength(), result2.getMaxLength());
			Assert.assertEquals(result1.getMinLength(), result2.getMinLength());
			if (result1.getMeanLength() == null) {
				Assert.assertEquals(result1.getMeanLength(), result2.getMeanLength());
			}
			else {
				Assert.assertEquals(result1.getMeanLength().doubleValue(), result2.getMeanLength().doubleValue(), 1e-5d);
			}
			Assert.assertEquals(result1.getNullCount(), result2.getNullCount());
			Assert.assertEquals(result1.getNonNullCount(), result2.getNonNullCount());
		}

	}.summarize(values);
}
 
Example 3
Source Project: flink   Source File: StringSummaryAggregator.java    License: Apache License 2.0 6 votes vote down vote up
@Override
public void combine(Aggregator<String, StringColumnSummary> otherSameType) {
	StringSummaryAggregator other = (StringSummaryAggregator) otherSameType;

	nullCount += other.nullCount;

	minStringLength = Math.min(minStringLength, other.minStringLength);
	maxStringLength = Math.max(maxStringLength, other.maxStringLength);

	if (nonNullCount == 0) {
		nonNullCount = other.nonNullCount;
		emptyCount = other.emptyCount;
		meanLength = other.meanLength;

	}
	else if (other.nonNullCount != 0) {
		long combinedCount = nonNullCount + other.nonNullCount;

		emptyCount += other.emptyCount;

		double deltaMean = other.meanLength.value() - meanLength.value();
		meanLength = meanLength.add(deltaMean * other.nonNullCount / combinedCount);
		nonNullCount = combinedCount;
	}
}
 
Example 4
Source Project: flink   Source File: StringSummaryAggregatorTest.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Helper method for summarizing a list of values.
 *
 * <p>This method breaks the rule of "testing only one thing" by aggregating and combining
 * a bunch of different ways.
 */
protected StringColumnSummary summarize(String... values) {

	return new AggregateCombineHarness<String, StringColumnSummary, StringSummaryAggregator>(){

		@Override
		protected void compareResults(StringColumnSummary result1, StringColumnSummary result2) {
			Assert.assertEquals(result1.getEmptyCount(), result2.getEmptyCount());
			Assert.assertEquals(result1.getMaxLength(), result2.getMaxLength());
			Assert.assertEquals(result1.getMinLength(), result2.getMinLength());
			if (result1.getMeanLength() == null) {
				Assert.assertEquals(result1.getMeanLength(), result2.getMeanLength());
			}
			else {
				Assert.assertEquals(result1.getMeanLength().doubleValue(), result2.getMeanLength().doubleValue(), 1e-5d);
			}
			Assert.assertEquals(result1.getNullCount(), result2.getNullCount());
			Assert.assertEquals(result1.getNonNullCount(), result2.getNonNullCount());
		}

	}.summarize(values);
}
 
Example 5
Source Project: flink   Source File: StringSummaryAggregator.java    License: Apache License 2.0 6 votes vote down vote up
@Override
public void combine(Aggregator<String, StringColumnSummary> otherSameType) {
	StringSummaryAggregator other = (StringSummaryAggregator) otherSameType;

	nullCount += other.nullCount;

	minStringLength = Math.min(minStringLength, other.minStringLength);
	maxStringLength = Math.max(maxStringLength, other.maxStringLength);

	if (nonNullCount == 0) {
		nonNullCount = other.nonNullCount;
		emptyCount = other.emptyCount;
		meanLength = other.meanLength;

	}
	else if (other.nonNullCount != 0) {
		long combinedCount = nonNullCount + other.nonNullCount;

		emptyCount += other.emptyCount;

		double deltaMean = other.meanLength.value() - meanLength.value();
		meanLength = meanLength.add(deltaMean * other.nonNullCount / combinedCount);
		nonNullCount = combinedCount;
	}
}
 
Example 6
Source Project: flink   Source File: StringSummaryAggregatorTest.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Helper method for summarizing a list of values.
 *
 * <p>This method breaks the rule of "testing only one thing" by aggregating and combining
 * a bunch of different ways.
 */
protected StringColumnSummary summarize(String... values) {

	return new AggregateCombineHarness<String, StringColumnSummary, StringSummaryAggregator>(){

		@Override
		protected void compareResults(StringColumnSummary result1, StringColumnSummary result2) {
			Assert.assertEquals(result1.getEmptyCount(), result2.getEmptyCount());
			Assert.assertEquals(result1.getMaxLength(), result2.getMaxLength());
			Assert.assertEquals(result1.getMinLength(), result2.getMinLength());
			if (result1.getMeanLength() == null) {
				Assert.assertEquals(result1.getMeanLength(), result2.getMeanLength());
			}
			else {
				Assert.assertEquals(result1.getMeanLength().doubleValue(), result2.getMeanLength().doubleValue(), 1e-5d);
			}
			Assert.assertEquals(result1.getNullCount(), result2.getNullCount());
			Assert.assertEquals(result1.getNonNullCount(), result2.getNonNullCount());
		}

	}.summarize(values);
}
 
Example 7
Source Project: Flink-CEPplus   Source File: StringSummaryAggregator.java    License: Apache License 2.0 5 votes vote down vote up
@Override
public StringColumnSummary result() {
	return new StringColumnSummary(
		nonNullCount,
		nullCount,
		emptyCount,
		nonNullCount == 0L ? null : minStringLength,
		nonNullCount == 0L ? null : maxStringLength,
		nonNullCount == 0L ? null : meanLength.value()
	);
}
 
Example 8
Source Project: Flink-CEPplus   Source File: StringSummaryAggregatorTest.java    License: Apache License 2.0 5 votes vote down vote up
@Test
public void testMixedGroup() {
	StringColumnSummary summary = summarize("abc", "", null, "  ", "defghi", "foo", null, null, "", " ");
	Assert.assertEquals(10, summary.getTotalCount());
	Assert.assertEquals(3, summary.getNullCount());
	Assert.assertEquals(7, summary.getNonNullCount());
	Assert.assertEquals(2, summary.getEmptyCount());
	Assert.assertEquals(0, summary.getMinLength().intValue());
	Assert.assertEquals(6, summary.getMaxLength().intValue());
	Assert.assertEquals(2.142857, summary.getMeanLength().doubleValue(), 0.001);
}
 
Example 9
Source Project: Flink-CEPplus   Source File: StringSummaryAggregatorTest.java    License: Apache License 2.0 5 votes vote down vote up
@Test
public void testAllNullStrings() {
	StringColumnSummary summary = summarize(null, null, null, null);
	Assert.assertEquals(4, summary.getTotalCount());
	Assert.assertEquals(4, summary.getNullCount());
	Assert.assertEquals(0, summary.getNonNullCount());
	Assert.assertEquals(0, summary.getEmptyCount());
	Assert.assertNull(summary.getMinLength());
	Assert.assertNull(summary.getMaxLength());
	Assert.assertNull(summary.getMeanLength());
}
 
Example 10
Source Project: Flink-CEPplus   Source File: StringSummaryAggregatorTest.java    License: Apache License 2.0 5 votes vote down vote up
@Test
public void testAllWithValues() {
	StringColumnSummary summary = summarize("cat", "hat", "dog", "frog");
	Assert.assertEquals(4, summary.getTotalCount());
	Assert.assertEquals(0, summary.getNullCount());
	Assert.assertEquals(4, summary.getNonNullCount());
	Assert.assertEquals(0, summary.getEmptyCount());
	Assert.assertEquals(3, summary.getMinLength().intValue());
	Assert.assertEquals(4, summary.getMaxLength().intValue());
	Assert.assertEquals(3.25, summary.getMeanLength().doubleValue(), 0.0);
}
 
Example 11
/**
 * Helper method for summarizing a list of values.
 *
 * <p>This method breaks the rule of "testing only one thing" by aggregating and combining
 * a bunch of different ways.
 */
@Override
protected StringColumnSummary summarize(String... values) {

	StringValue[] stringValues = new StringValue[values.length];
	for (int i = 0; i < values.length; i++) {
		if (values[i] != null) {
			stringValues[i] = new StringValue(values[i]);
		}
	}

	return new AggregateCombineHarness<StringValue, StringColumnSummary, ValueSummaryAggregator.StringValueSummaryAggregator>(){

		@Override
		protected void compareResults(StringColumnSummary result1, StringColumnSummary result2) {
			Assert.assertEquals(result1.getEmptyCount(), result2.getEmptyCount());
			Assert.assertEquals(result1.getMaxLength(), result2.getMaxLength());
			Assert.assertEquals(result1.getMinLength(), result2.getMinLength());
			if (result1.getMeanLength() == null) {
				Assert.assertEquals(result1.getMeanLength(), result2.getMeanLength());
			}
			else {
				Assert.assertEquals(result1.getMeanLength().doubleValue(), result2.getMeanLength().doubleValue(), 1e-5d);
			}

			Assert.assertEquals(result1.getNullCount(), result2.getNullCount());
			Assert.assertEquals(result1.getNonNullCount(), result2.getNonNullCount());
		}

	}.summarize(stringValues);
}
 
Example 12
Source Project: flink   Source File: StringSummaryAggregator.java    License: Apache License 2.0 5 votes vote down vote up
@Override
public StringColumnSummary result() {
	return new StringColumnSummary(
		nonNullCount,
		nullCount,
		emptyCount,
		nonNullCount == 0L ? null : minStringLength,
		nonNullCount == 0L ? null : maxStringLength,
		nonNullCount == 0L ? null : meanLength.value()
	);
}
 
Example 13
Source Project: flink   Source File: StringSummaryAggregatorTest.java    License: Apache License 2.0 5 votes vote down vote up
@Test
public void testMixedGroup() {
	StringColumnSummary summary = summarize("abc", "", null, "  ", "defghi", "foo", null, null, "", " ");
	Assert.assertEquals(10, summary.getTotalCount());
	Assert.assertEquals(3, summary.getNullCount());
	Assert.assertEquals(7, summary.getNonNullCount());
	Assert.assertEquals(2, summary.getEmptyCount());
	Assert.assertEquals(0, summary.getMinLength().intValue());
	Assert.assertEquals(6, summary.getMaxLength().intValue());
	Assert.assertEquals(2.142857, summary.getMeanLength().doubleValue(), 0.001);
}
 
Example 14
Source Project: flink   Source File: StringSummaryAggregatorTest.java    License: Apache License 2.0 5 votes vote down vote up
@Test
public void testAllNullStrings() {
	StringColumnSummary summary = summarize(null, null, null, null);
	Assert.assertEquals(4, summary.getTotalCount());
	Assert.assertEquals(4, summary.getNullCount());
	Assert.assertEquals(0, summary.getNonNullCount());
	Assert.assertEquals(0, summary.getEmptyCount());
	Assert.assertNull(summary.getMinLength());
	Assert.assertNull(summary.getMaxLength());
	Assert.assertNull(summary.getMeanLength());
}
 
Example 15
Source Project: flink   Source File: StringSummaryAggregatorTest.java    License: Apache License 2.0 5 votes vote down vote up
@Test
public void testAllWithValues() {
	StringColumnSummary summary = summarize("cat", "hat", "dog", "frog");
	Assert.assertEquals(4, summary.getTotalCount());
	Assert.assertEquals(0, summary.getNullCount());
	Assert.assertEquals(4, summary.getNonNullCount());
	Assert.assertEquals(0, summary.getEmptyCount());
	Assert.assertEquals(3, summary.getMinLength().intValue());
	Assert.assertEquals(4, summary.getMaxLength().intValue());
	Assert.assertEquals(3.25, summary.getMeanLength().doubleValue(), 0.0);
}
 
Example 16
Source Project: flink   Source File: StringValueSummaryAggregatorTest.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Helper method for summarizing a list of values.
 *
 * <p>This method breaks the rule of "testing only one thing" by aggregating and combining
 * a bunch of different ways.
 */
@Override
protected StringColumnSummary summarize(String... values) {

	StringValue[] stringValues = new StringValue[values.length];
	for (int i = 0; i < values.length; i++) {
		if (values[i] != null) {
			stringValues[i] = new StringValue(values[i]);
		}
	}

	return new AggregateCombineHarness<StringValue, StringColumnSummary, ValueSummaryAggregator.StringValueSummaryAggregator>(){

		@Override
		protected void compareResults(StringColumnSummary result1, StringColumnSummary result2) {
			Assert.assertEquals(result1.getEmptyCount(), result2.getEmptyCount());
			Assert.assertEquals(result1.getMaxLength(), result2.getMaxLength());
			Assert.assertEquals(result1.getMinLength(), result2.getMinLength());
			if (result1.getMeanLength() == null) {
				Assert.assertEquals(result1.getMeanLength(), result2.getMeanLength());
			}
			else {
				Assert.assertEquals(result1.getMeanLength().doubleValue(), result2.getMeanLength().doubleValue(), 1e-5d);
			}

			Assert.assertEquals(result1.getNullCount(), result2.getNullCount());
			Assert.assertEquals(result1.getNonNullCount(), result2.getNonNullCount());
		}

	}.summarize(stringValues);
}
 
Example 17
Source Project: flink   Source File: StringSummaryAggregator.java    License: Apache License 2.0 5 votes vote down vote up
@Override
public StringColumnSummary result() {
	return new StringColumnSummary(
		nonNullCount,
		nullCount,
		emptyCount,
		nonNullCount == 0L ? null : minStringLength,
		nonNullCount == 0L ? null : maxStringLength,
		nonNullCount == 0L ? null : meanLength.value()
	);
}
 
Example 18
Source Project: flink   Source File: StringSummaryAggregatorTest.java    License: Apache License 2.0 5 votes vote down vote up
@Test
public void testMixedGroup() {
	StringColumnSummary summary = summarize("abc", "", null, "  ", "defghi", "foo", null, null, "", " ");
	Assert.assertEquals(10, summary.getTotalCount());
	Assert.assertEquals(3, summary.getNullCount());
	Assert.assertEquals(7, summary.getNonNullCount());
	Assert.assertEquals(2, summary.getEmptyCount());
	Assert.assertEquals(0, summary.getMinLength().intValue());
	Assert.assertEquals(6, summary.getMaxLength().intValue());
	Assert.assertEquals(2.142857, summary.getMeanLength().doubleValue(), 0.001);
}
 
Example 19
Source Project: flink   Source File: StringSummaryAggregatorTest.java    License: Apache License 2.0 5 votes vote down vote up
@Test
public void testAllNullStrings() {
	StringColumnSummary summary = summarize(null, null, null, null);
	Assert.assertEquals(4, summary.getTotalCount());
	Assert.assertEquals(4, summary.getNullCount());
	Assert.assertEquals(0, summary.getNonNullCount());
	Assert.assertEquals(0, summary.getEmptyCount());
	Assert.assertNull(summary.getMinLength());
	Assert.assertNull(summary.getMaxLength());
	Assert.assertNull(summary.getMeanLength());
}
 
Example 20
Source Project: flink   Source File: StringSummaryAggregatorTest.java    License: Apache License 2.0 5 votes vote down vote up
@Test
public void testAllWithValues() {
	StringColumnSummary summary = summarize("cat", "hat", "dog", "frog");
	Assert.assertEquals(4, summary.getTotalCount());
	Assert.assertEquals(0, summary.getNullCount());
	Assert.assertEquals(4, summary.getNonNullCount());
	Assert.assertEquals(0, summary.getEmptyCount());
	Assert.assertEquals(3, summary.getMinLength().intValue());
	Assert.assertEquals(4, summary.getMaxLength().intValue());
	Assert.assertEquals(3.25, summary.getMeanLength().doubleValue(), 0.0);
}
 
Example 21
Source Project: flink   Source File: StringValueSummaryAggregatorTest.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Helper method for summarizing a list of values.
 *
 * <p>This method breaks the rule of "testing only one thing" by aggregating and combining
 * a bunch of different ways.
 */
@Override
protected StringColumnSummary summarize(String... values) {

	StringValue[] stringValues = new StringValue[values.length];
	for (int i = 0; i < values.length; i++) {
		if (values[i] != null) {
			stringValues[i] = new StringValue(values[i]);
		}
	}

	return new AggregateCombineHarness<StringValue, StringColumnSummary, ValueSummaryAggregator.StringValueSummaryAggregator>(){

		@Override
		protected void compareResults(StringColumnSummary result1, StringColumnSummary result2) {
			Assert.assertEquals(result1.getEmptyCount(), result2.getEmptyCount());
			Assert.assertEquals(result1.getMaxLength(), result2.getMaxLength());
			Assert.assertEquals(result1.getMinLength(), result2.getMinLength());
			if (result1.getMeanLength() == null) {
				Assert.assertEquals(result1.getMeanLength(), result2.getMeanLength());
			}
			else {
				Assert.assertEquals(result1.getMeanLength().doubleValue(), result2.getMeanLength().doubleValue(), 1e-5d);
			}

			Assert.assertEquals(result1.getNullCount(), result2.getNullCount());
			Assert.assertEquals(result1.getNonNullCount(), result2.getNonNullCount());
		}

	}.summarize(stringValues);
}
 
Example 22
Source Project: Flink-CEPplus   Source File: DataSetUtilsITCase.java    License: Apache License 2.0 4 votes vote down vote up
@Test
public void testSummarize() throws Exception {
	final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();

	List<Tuple8<Short, Integer, Long, Float, Double, String, Boolean, DoubleValue>> data = new ArrayList<>();
	data.add(new Tuple8<>((short) 1, 1, 100L, 0.1f, 1.012376, "hello", false, new DoubleValue(50.0)));
	data.add(new Tuple8<>((short) 2, 2, 1000L, 0.2f, 2.003453, "hello", true, new DoubleValue(50.0)));
	data.add(new Tuple8<>((short) 4, 10, 10000L, 0.2f, 75.00005, "null", true, new DoubleValue(50.0)));
	data.add(new Tuple8<>((short) 10, 4, 100L, 0.9f, 79.5, "", true, new DoubleValue(50.0)));
	data.add(new Tuple8<>((short) 5, 5, 1000L, 0.2f, 10.0000001, "a", false, new DoubleValue(50.0)));
	data.add(new Tuple8<>((short) 6, 6, 10L, 0.1f, 0.0000000000023, "", true, new DoubleValue(100.0)));
	data.add(new Tuple8<>((short) 7, 7, 1L, 0.2f, Double.POSITIVE_INFINITY, "abcdefghijklmnop", true, new DoubleValue(100.0)));
	data.add(new Tuple8<>((short) 8, 8, -100L, 0.001f, Double.NaN, "abcdefghi", true, new DoubleValue(100.0)));

	Collections.shuffle(data);

	DataSet<Tuple8<Short, Integer, Long, Float, Double, String, Boolean, DoubleValue>> ds = env.fromCollection(data);

	// call method under test
	Tuple results = DataSetUtils.summarize(ds);

	Assert.assertEquals(8, results.getArity());

	NumericColumnSummary<Short> col0Summary = results.getField(0);
	Assert.assertEquals(8, col0Summary.getNonMissingCount());
	Assert.assertEquals(1, col0Summary.getMin().shortValue());
	Assert.assertEquals(10, col0Summary.getMax().shortValue());
	Assert.assertEquals(5.375, col0Summary.getMean().doubleValue(), 0.0);

	NumericColumnSummary<Integer> col1Summary = results.getField(1);
	Assert.assertEquals(1, col1Summary.getMin().intValue());
	Assert.assertEquals(10, col1Summary.getMax().intValue());
	Assert.assertEquals(5.375, col1Summary.getMean().doubleValue(), 0.0);

	NumericColumnSummary<Long> col2Summary = results.getField(2);
	Assert.assertEquals(-100L, col2Summary.getMin().longValue());
	Assert.assertEquals(10000L, col2Summary.getMax().longValue());

	NumericColumnSummary<Float> col3Summary = results.getField(3);
	Assert.assertEquals(8, col3Summary.getTotalCount());
	Assert.assertEquals(0.001000, col3Summary.getMin().doubleValue(), 0.0000001);
	Assert.assertEquals(0.89999999, col3Summary.getMax().doubleValue(), 0.0000001);
	Assert.assertEquals(0.2376249988883501, col3Summary.getMean().doubleValue(), 0.000000000001);
	Assert.assertEquals(0.0768965488108089, col3Summary.getVariance().doubleValue(), 0.00000001);
	Assert.assertEquals(0.27730226975415995, col3Summary.getStandardDeviation().doubleValue(), 0.000000000001);

	NumericColumnSummary<Double> col4Summary = results.getField(4);
	Assert.assertEquals(6, col4Summary.getNonMissingCount());
	Assert.assertEquals(2, col4Summary.getMissingCount());
	Assert.assertEquals(0.0000000000023, col4Summary.getMin().doubleValue(), 0.0);
	Assert.assertEquals(79.5, col4Summary.getMax().doubleValue(), 0.000000000001);

	StringColumnSummary col5Summary = results.getField(5);
	Assert.assertEquals(8, col5Summary.getTotalCount());
	Assert.assertEquals(0, col5Summary.getNullCount());
	Assert.assertEquals(8, col5Summary.getNonNullCount());
	Assert.assertEquals(2, col5Summary.getEmptyCount());
	Assert.assertEquals(0, col5Summary.getMinLength().intValue());
	Assert.assertEquals(16, col5Summary.getMaxLength().intValue());
	Assert.assertEquals(5.0, col5Summary.getMeanLength().doubleValue(), 0.0001);

	BooleanColumnSummary col6Summary = results.getField(6);
	Assert.assertEquals(8, col6Summary.getTotalCount());
	Assert.assertEquals(2, col6Summary.getFalseCount());
	Assert.assertEquals(6, col6Summary.getTrueCount());
	Assert.assertEquals(0, col6Summary.getNullCount());

	NumericColumnSummary<Double> col7Summary = results.getField(7);
	Assert.assertEquals(100.0, col7Summary.getMax().doubleValue(), 0.00001);
	Assert.assertEquals(50.0, col7Summary.getMin().doubleValue(), 0.00001);
}
 
Example 23
Source Project: flink   Source File: DataSetUtilsITCase.java    License: Apache License 2.0 4 votes vote down vote up
@Test
public void testSummarize() throws Exception {
	final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();

	List<Tuple8<Short, Integer, Long, Float, Double, String, Boolean, DoubleValue>> data = new ArrayList<>();
	data.add(new Tuple8<>((short) 1, 1, 100L, 0.1f, 1.012376, "hello", false, new DoubleValue(50.0)));
	data.add(new Tuple8<>((short) 2, 2, 1000L, 0.2f, 2.003453, "hello", true, new DoubleValue(50.0)));
	data.add(new Tuple8<>((short) 4, 10, 10000L, 0.2f, 75.00005, "null", true, new DoubleValue(50.0)));
	data.add(new Tuple8<>((short) 10, 4, 100L, 0.9f, 79.5, "", true, new DoubleValue(50.0)));
	data.add(new Tuple8<>((short) 5, 5, 1000L, 0.2f, 10.0000001, "a", false, new DoubleValue(50.0)));
	data.add(new Tuple8<>((short) 6, 6, 10L, 0.1f, 0.0000000000023, "", true, new DoubleValue(100.0)));
	data.add(new Tuple8<>((short) 7, 7, 1L, 0.2f, Double.POSITIVE_INFINITY, "abcdefghijklmnop", true, new DoubleValue(100.0)));
	data.add(new Tuple8<>((short) 8, 8, -100L, 0.001f, Double.NaN, "abcdefghi", true, new DoubleValue(100.0)));

	Collections.shuffle(data);

	DataSet<Tuple8<Short, Integer, Long, Float, Double, String, Boolean, DoubleValue>> ds = env.fromCollection(data);

	// call method under test
	Tuple results = DataSetUtils.summarize(ds);

	Assert.assertEquals(8, results.getArity());

	NumericColumnSummary<Short> col0Summary = results.getField(0);
	Assert.assertEquals(8, col0Summary.getNonMissingCount());
	Assert.assertEquals(1, col0Summary.getMin().shortValue());
	Assert.assertEquals(10, col0Summary.getMax().shortValue());
	Assert.assertEquals(5.375, col0Summary.getMean().doubleValue(), 0.0);

	NumericColumnSummary<Integer> col1Summary = results.getField(1);
	Assert.assertEquals(1, col1Summary.getMin().intValue());
	Assert.assertEquals(10, col1Summary.getMax().intValue());
	Assert.assertEquals(5.375, col1Summary.getMean().doubleValue(), 0.0);

	NumericColumnSummary<Long> col2Summary = results.getField(2);
	Assert.assertEquals(-100L, col2Summary.getMin().longValue());
	Assert.assertEquals(10000L, col2Summary.getMax().longValue());

	NumericColumnSummary<Float> col3Summary = results.getField(3);
	Assert.assertEquals(8, col3Summary.getTotalCount());
	Assert.assertEquals(0.001000, col3Summary.getMin().doubleValue(), 0.0000001);
	Assert.assertEquals(0.89999999, col3Summary.getMax().doubleValue(), 0.0000001);
	Assert.assertEquals(0.2376249988883501, col3Summary.getMean().doubleValue(), 0.000000000001);
	Assert.assertEquals(0.0768965488108089, col3Summary.getVariance().doubleValue(), 0.00000001);
	Assert.assertEquals(0.27730226975415995, col3Summary.getStandardDeviation().doubleValue(), 0.000000000001);

	NumericColumnSummary<Double> col4Summary = results.getField(4);
	Assert.assertEquals(6, col4Summary.getNonMissingCount());
	Assert.assertEquals(2, col4Summary.getMissingCount());
	Assert.assertEquals(0.0000000000023, col4Summary.getMin().doubleValue(), 0.0);
	Assert.assertEquals(79.5, col4Summary.getMax().doubleValue(), 0.000000000001);

	StringColumnSummary col5Summary = results.getField(5);
	Assert.assertEquals(8, col5Summary.getTotalCount());
	Assert.assertEquals(0, col5Summary.getNullCount());
	Assert.assertEquals(8, col5Summary.getNonNullCount());
	Assert.assertEquals(2, col5Summary.getEmptyCount());
	Assert.assertEquals(0, col5Summary.getMinLength().intValue());
	Assert.assertEquals(16, col5Summary.getMaxLength().intValue());
	Assert.assertEquals(5.0, col5Summary.getMeanLength().doubleValue(), 0.0001);

	BooleanColumnSummary col6Summary = results.getField(6);
	Assert.assertEquals(8, col6Summary.getTotalCount());
	Assert.assertEquals(2, col6Summary.getFalseCount());
	Assert.assertEquals(6, col6Summary.getTrueCount());
	Assert.assertEquals(0, col6Summary.getNullCount());

	NumericColumnSummary<Double> col7Summary = results.getField(7);
	Assert.assertEquals(100.0, col7Summary.getMax().doubleValue(), 0.00001);
	Assert.assertEquals(50.0, col7Summary.getMin().doubleValue(), 0.00001);
}
 
Example 24
Source Project: flink   Source File: DataSetUtilsITCase.java    License: Apache License 2.0 4 votes vote down vote up
@Test
public void testSummarize() throws Exception {
	final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();

	List<Tuple8<Short, Integer, Long, Float, Double, String, Boolean, DoubleValue>> data = new ArrayList<>();
	data.add(new Tuple8<>((short) 1, 1, 100L, 0.1f, 1.012376, "hello", false, new DoubleValue(50.0)));
	data.add(new Tuple8<>((short) 2, 2, 1000L, 0.2f, 2.003453, "hello", true, new DoubleValue(50.0)));
	data.add(new Tuple8<>((short) 4, 10, 10000L, 0.2f, 75.00005, "null", true, new DoubleValue(50.0)));
	data.add(new Tuple8<>((short) 10, 4, 100L, 0.9f, 79.5, "", true, new DoubleValue(50.0)));
	data.add(new Tuple8<>((short) 5, 5, 1000L, 0.2f, 10.0000001, "a", false, new DoubleValue(50.0)));
	data.add(new Tuple8<>((short) 6, 6, 10L, 0.1f, 0.0000000000023, "", true, new DoubleValue(100.0)));
	data.add(new Tuple8<>((short) 7, 7, 1L, 0.2f, Double.POSITIVE_INFINITY, "abcdefghijklmnop", true, new DoubleValue(100.0)));
	data.add(new Tuple8<>((short) 8, 8, -100L, 0.001f, Double.NaN, "abcdefghi", true, new DoubleValue(100.0)));

	Collections.shuffle(data);

	DataSet<Tuple8<Short, Integer, Long, Float, Double, String, Boolean, DoubleValue>> ds = env.fromCollection(data);

	// call method under test
	Tuple results = DataSetUtils.summarize(ds);

	Assert.assertEquals(8, results.getArity());

	NumericColumnSummary<Short> col0Summary = results.getField(0);
	Assert.assertEquals(8, col0Summary.getNonMissingCount());
	Assert.assertEquals(1, col0Summary.getMin().shortValue());
	Assert.assertEquals(10, col0Summary.getMax().shortValue());
	Assert.assertEquals(5.375, col0Summary.getMean().doubleValue(), 0.0);

	NumericColumnSummary<Integer> col1Summary = results.getField(1);
	Assert.assertEquals(1, col1Summary.getMin().intValue());
	Assert.assertEquals(10, col1Summary.getMax().intValue());
	Assert.assertEquals(5.375, col1Summary.getMean().doubleValue(), 0.0);

	NumericColumnSummary<Long> col2Summary = results.getField(2);
	Assert.assertEquals(-100L, col2Summary.getMin().longValue());
	Assert.assertEquals(10000L, col2Summary.getMax().longValue());

	NumericColumnSummary<Float> col3Summary = results.getField(3);
	Assert.assertEquals(8, col3Summary.getTotalCount());
	Assert.assertEquals(0.001000, col3Summary.getMin().doubleValue(), 0.0000001);
	Assert.assertEquals(0.89999999, col3Summary.getMax().doubleValue(), 0.0000001);
	Assert.assertEquals(0.2376249988883501, col3Summary.getMean().doubleValue(), 0.000000000001);
	Assert.assertEquals(0.0768965488108089, col3Summary.getVariance().doubleValue(), 0.00000001);
	Assert.assertEquals(0.27730226975415995, col3Summary.getStandardDeviation().doubleValue(), 0.000000000001);

	NumericColumnSummary<Double> col4Summary = results.getField(4);
	Assert.assertEquals(6, col4Summary.getNonMissingCount());
	Assert.assertEquals(2, col4Summary.getMissingCount());
	Assert.assertEquals(0.0000000000023, col4Summary.getMin().doubleValue(), 0.0);
	Assert.assertEquals(79.5, col4Summary.getMax().doubleValue(), 0.000000000001);

	StringColumnSummary col5Summary = results.getField(5);
	Assert.assertEquals(8, col5Summary.getTotalCount());
	Assert.assertEquals(0, col5Summary.getNullCount());
	Assert.assertEquals(8, col5Summary.getNonNullCount());
	Assert.assertEquals(2, col5Summary.getEmptyCount());
	Assert.assertEquals(0, col5Summary.getMinLength().intValue());
	Assert.assertEquals(16, col5Summary.getMaxLength().intValue());
	Assert.assertEquals(5.0, col5Summary.getMeanLength().doubleValue(), 0.0001);

	BooleanColumnSummary col6Summary = results.getField(6);
	Assert.assertEquals(8, col6Summary.getTotalCount());
	Assert.assertEquals(2, col6Summary.getFalseCount());
	Assert.assertEquals(6, col6Summary.getTrueCount());
	Assert.assertEquals(0, col6Summary.getNullCount());

	NumericColumnSummary<Double> col7Summary = results.getField(7);
	Assert.assertEquals(100.0, col7Summary.getMax().doubleValue(), 0.00001);
	Assert.assertEquals(50.0, col7Summary.getMin().doubleValue(), 0.00001);
}