Package pl.poznan.put.circular.samples

Class AngleSample

java.lang.Object
pl.poznan.put.circular.samples.AngleSample
Direct Known Subclasses:
ImmutableAngleSample
@Immutable public abstract class AngleSample extends Object
A sample of angular values and computed statistics.

  • Constructor Details

    • AngleSample

      public AngleSample()

  • Method Details

    • data

      @Parameter(order=1) public abstract Collection<Angle> data()
      Returns:
      The collection of values in the sample.

    • meanDirection

      @Lazy public Angle meanDirection()
      Returns:
      A mean angular value of the sample.

    • meanResultantLength

      @Lazy public double meanResultantLength()
      Returns:
      The length of the mean direction vector in range [0; 1]. The closer it is to 1, the less diverse are the data in the sample.

    • circularVariance

      @Lazy public double circularVariance()
      Returns:
      A measure of variance of the data on the circle, taking values in range [0; 1].

    • circularStandardDeviation

      @Lazy public double circularStandardDeviation()
      Returns:
      A measure of variance of the data on the circle, taking values in range [0; ∞].

    • circularDispersion

      @Lazy public double circularDispersion()
      Returns:
      Another measure of variance of the data depending on the first and second central trigonometric moment.

    • skewness

      @Lazy public double skewness()
      Returns:
      Another measure of variance of the data.

    • kurtosis

      @Lazy public double kurtosis()
      Returns:
      Another measure of variance of the data.

    • medianDirection

      @Lazy public Angle medianDirection()
      Returns:
      The median direction i.e. angular value to which all others have the minimum mean distance.

    • meanDeviation

      @Lazy public double meanDeviation()
      Returns:
      The mean of distances of the observations from the samples' median.

    • circularRank

      public double circularRank(Angle datapoint)
      Computes the rank (index) of the value in the current sample assuming that 0 is the beginning of the circle.
      Parameters:
      datapoint - Value, must be one of those used to create this instance of AngleSample.
      Returns:
      The rank (index) of the value in the sample, when treating 0 as the beginning of the circle.

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • check

      @Check protected void check()

    • medianAndMeanDeviation

      @Lazy protected org.apache.commons.lang3.tuple.Pair<Angle,Double> medianAndMeanDeviation()

    • sortedData

      @Lazy protected List<Angle> sortedData()

    • um1

      @Lazy protected TrigonometricMoment um1()

    • cm2

      @Lazy protected TrigonometricMoment cm2()

    • um2

      @Lazy protected TrigonometricMoment um2()