Package pl.poznan.put.circular.samples

Class AngleSample

  • Direct Known Subclasses:
    ImmutableAngleSample
    @Immutable
public abstract class AngleSample
extends Object
    A sample of angular values and computed statistics.

    • Constructor Detail

      • AngleSample

        public AngleSample()

    • Method Detail

      • 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.

      • check

        @Check
protected void check()

      • medianAndMeanDeviation

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

      • sortedData

        @Lazy
protected List<Angle> sortedData()