Examples of Measurement

algorithm.Measurement
com.google.caliper.Measurement
Represents a measurement of a single run of a benchmark.
com.google.caliper.model.Measurement
A single, weighted measurement. @author gak@google.com (Gregory Kick)
com.swinarta.sunflower.core.model.Measurement
eu.planets_project.pp.plato.model.measurement.Measurement
eu.scape_project.planning.model.measurement.Measurement
moa.core.Measurement
org.jmol.modelset.Measurement
org.osgi.util.measurement.Measurement
Represents a value with an error, a unit and a time-stamp.
A {@code Measurement} object is used for maintaining the tuple of value,error, unit and time-stamp. The value and error are represented as doubles and the time is measured in milliseconds since midnight, January 1, 1970 UTC.
Mathematic methods are provided that correctly calculate taking the error into account. A runtime error will occur when two measurements are used in an incompatible way. E.g., when a speed (m/s) is added to a distance (m). The measurement class will correctly track changes in unit during multiplication and division, always coercing the result to the most simple form. See {@link Unit} for more information on the supported units.
Errors in the measurement class are absolute errors. Measurement errors should use the P95 rule. Actual values must fall in the range value +/- error 95% or more of the time.
A {@code Measurement} object is immutable in order to be easily shared.
Note: This class has a natural ordering that is inconsistent with equals. See {@link #compareTo(Object)}. @Immutable @author $Id: 5d6be0f87b34d62ad5671e13710ef52ea36abf0c $

Examples of algorithm.Measurement

      private Collection<Measurement> measurements;


      @Before
      public void setup() {
            measurements = new ArrayList<Measurement> () {{
                add(new Measurement(5,10));
                add(new Measurement(2, 15));
                add(new Measurement(100, 5));
            }};
      }

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Examples of algorithm.Measurement


  @Test
  public void SummingAggregation_Produces_Sum() {
    SummingAggregator aggregator = new SummingAggregator(measurements);


    Measurement result = aggregator.aggregate();


    assertEquals(107, result.getX());
    assertEquals(30, result.getY());
  }

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Examples of algorithm.Measurement


  @Test
  public void AveragingAggregagtor_Produces_Average() {
    AveragingAggregator aggregator = new AveragingAggregator(measurements);


    Measurement result = aggregator.aggregate();


    assertEquals(35, result.getX());
    assertEquals(10, result.getY());
  }

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Examples of algorithm.Measurement


  @Test
  public void LowPassAveragingAggregator_Applys_Filter() {
    LowPassAveragingAggregator aggregator = new LowPassAveragingAggregator(measurements);


    Measurement result = aggregator.aggregate();


    assertEquals(3, result.getX());
    assertEquals(12, result.getY());
  }

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Examples of algorithm.Measurement

    return measurements;
  }


  @Override
  protected Measurement aggregateMeasurements() {
    return new Measurement(averageX(measurements), averageY(measurements));


  }

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Examples of algorithm.Measurement

    return measurements;
  }


  @Override
  protected Measurement aggregateMeasurements() {
    return new Measurement(sumX(measurements), sumY(measurements));
  }

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Examples of algorithm.Measurement


public class SummingStrategy implements IAggregationStrategy {


  @Override
  public Measurement aggregate(Collection<Measurement> measurements) {
    return new Measurement(sumX(measurements), sumY(measurements));
  }

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Examples of algorithm.Measurement


public class AveragingStrategy implements IAggregationStrategy {


  @Override
  public Measurement aggregate(Collection<Measurement> measurements) {
    return new Measurement(MeasurementUtil.averageX(measurements), MeasurementUtil.averageY(measurements));
  }

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Examples of algorithm.Measurement

      private Collection<Measurement> measurements;


      @Before
      public void setup() {
            measurements = new ArrayList<Measurement> () {{
                add(new Measurement(5,10));
                add(new Measurement(2, 15));
                add(new Measurement(100, 5));
            }};
      }

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Examples of algorithm.Measurement


        @Test
        public void SummingAggregation_Produces_Sum() {
          PointsAggregator aggregator = new PointsAggregator(measurements, new EmptyFilter(), new SummingStrategy());


    Measurement result = aggregator.aggregate();


    assertEquals(107, result.getX());
    assertEquals(30, result.getY());
        }

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