Examples with DoubleSummary com.yahoo.sketches.tuple.DoubleSummary used on opensource projects

Example 6 with DoubleSummary

use of com.yahoo.sketches.tuple.DoubleSummary in project sketches-pig by DataSketches.

the class UnionDoubleSummarySketchTest method execMaxMode.

@Test
public void execMaxMode() throws Exception {
    EvalFunc<Tuple> func = new UnionDoubleSummarySketch("4096", "Max");
    DataBag bag = BagFactory.getInstance().newDefaultBag();
    {
        UpdatableSketch<Double, DoubleSummary> sketch = new UpdatableSketchBuilder<Double, DoubleSummary>(new DoubleSummaryFactory()).build();
        sketch.update(1, 1.0);
        sketch.update(2, 1.0);
        bag.add(PigUtil.objectsToTuple(new DataByteArray(sketch.compact().toByteArray())));
    }
    {
        UpdatableSketch<Double, DoubleSummary> sketch = new UpdatableSketchBuilder<Double, DoubleSummary>(new DoubleSummaryFactory()).build();
        sketch.update(1, 3.0);
        sketch.update(2, 3.0);
        bag.add(PigUtil.objectsToTuple(new DataByteArray(sketch.compact().toByteArray())));
    }
    Tuple resultTuple = func.exec(PigUtil.objectsToTuple(bag));
    Assert.assertNotNull(resultTuple);
    Assert.assertEquals(resultTuple.size(), 1);
    DataByteArray bytes = (DataByteArray) resultTuple.get(0);
    Assert.assertTrue(bytes.size() > 0);
    Sketch<DoubleSummary> sketch = Sketches.heapifySketch(Memory.wrap(bytes.get()), new DoubleSummaryDeserializer());
    Assert.assertEquals(sketch.getEstimate(), 2.0, 0.0);
    SketchIterator<DoubleSummary> it = sketch.iterator();
    while (it.next()) {
        Assert.assertEquals(it.getSummary().getValue(), 3.0, 0.0);
    }
}

Example 7 with DoubleSummary

use of com.yahoo.sketches.tuple.DoubleSummary in project sketches-pig by DataSketches.

the class UnionDoubleSummarySketchTest method accumulatorEmptyBag.

@Test
public void accumulatorEmptyBag() throws Exception {
    Accumulator<Tuple> func = new UnionDoubleSummarySketch("32");
    func.accumulate(PigUtil.objectsToTuple(BagFactory.getInstance().newDefaultBag()));
    Tuple resultTuple = func.getValue();
    Assert.assertNotNull(resultTuple);
    Assert.assertEquals(resultTuple.size(), 1);
    DataByteArray bytes = (DataByteArray) resultTuple.get(0);
    Assert.assertTrue(bytes.size() > 0);
    Sketch<DoubleSummary> sketch = Sketches.heapifySketch(Memory.wrap(bytes.get()), new DoubleSummaryDeserializer());
    Assert.assertEquals(sketch.getEstimate(), 0.0);
}

Example 8 with DoubleSummary

use of com.yahoo.sketches.tuple.DoubleSummary in project sketches-pig by DataSketches.

the class UnionDoubleSummarySketchTest method accumulatorNullInput.

@Test
public void accumulatorNullInput() throws Exception {
    Accumulator<Tuple> func = new UnionDoubleSummarySketch("32");
    func.accumulate(null);
    Tuple resultTuple = func.getValue();
    Assert.assertNotNull(resultTuple);
    Assert.assertEquals(resultTuple.size(), 1);
    DataByteArray bytes = (DataByteArray) resultTuple.get(0);
    Assert.assertTrue(bytes.size() > 0);
    Sketch<DoubleSummary> sketch = Sketches.heapifySketch(Memory.wrap(bytes.get()), new DoubleSummaryDeserializer());
    Assert.assertEquals(sketch.getEstimate(), 0.0);
}

Example 9 with DoubleSummary

use of com.yahoo.sketches.tuple.DoubleSummary in project sketches-pig by DataSketches.

the class UnionDoubleSummarySketchTest method algebraicIntemediateFinalExactMinMode.

@Test
public void algebraicIntemediateFinalExactMinMode() throws Exception {
    EvalFunc<Tuple> func = new UnionDoubleSummarySketch.IntermediateFinal("4096", "Min");
    DataBag bag = BagFactory.getInstance().newDefaultBag();
    // this is to simulate the output from Initial
    {
        UpdatableSketch<Double, DoubleSummary> sketch = new UpdatableSketchBuilder<Double, DoubleSummary>(new DoubleSummaryFactory()).build();
        sketch.update(1, 1.0);
        sketch.update(2, 1.0);
        DataBag innerBag = PigUtil.tuplesToBag(PigUtil.objectsToTuple(new DataByteArray(sketch.compact().toByteArray())));
        bag.add(PigUtil.objectsToTuple(innerBag));
    }
    // this is to simulate the output from a prior call of IntermediateFinal
    {
        UpdatableSketch<Double, DoubleSummary> sketch = new UpdatableSketchBuilder<Double, DoubleSummary>(new DoubleSummaryFactory()).build();
        sketch.update(1, 3.0);
        sketch.update(2, 3.0);
        bag.add(PigUtil.objectsToTuple(new DataByteArray(sketch.compact().toByteArray())));
    }
    Tuple resultTuple = func.exec(PigUtil.objectsToTuple(bag));
    Assert.assertNotNull(resultTuple);
    Assert.assertEquals(resultTuple.size(), 1);
    DataByteArray bytes = (DataByteArray) resultTuple.get(0);
    Assert.assertTrue(bytes.size() > 0);
    Sketch<DoubleSummary> sketch = Sketches.heapifySketch(Memory.wrap(bytes.get()), new DoubleSummaryDeserializer());
    Assert.assertEquals(sketch.getEstimate(), 2.0, 0.0);
    SketchIterator<DoubleSummary> it = sketch.iterator();
    while (it.next()) {
        Assert.assertEquals(it.getSummary().getValue(), 1.0, 0.0);
    }
}

Example 10 with DoubleSummary

use of com.yahoo.sketches.tuple.DoubleSummary in project sketches-pig by DataSketches.

the class UnionDoubleSummarySketchTest method accumulatorEmptyInputTuple.

@Test
public void accumulatorEmptyInputTuple() throws Exception {
    Accumulator<Tuple> func = new UnionDoubleSummarySketch("32");
    func.accumulate(TupleFactory.getInstance().newTuple());
    Tuple resultTuple = func.getValue();
    Assert.assertNotNull(resultTuple);
    Assert.assertEquals(resultTuple.size(), 1);
    DataByteArray bytes = (DataByteArray) resultTuple.get(0);
    Assert.assertTrue(bytes.size() > 0);
    Sketch<DoubleSummary> sketch = Sketches.heapifySketch(Memory.wrap(bytes.get()), new DoubleSummaryDeserializer());
    Assert.assertEquals(sketch.getEstimate(), 0.0);
}