程序包 org.meteoinfo.math.distribution

类 DistributionUtil

  • public class DistributionUtil
extends java.lang.Object
    作者:
    wyq

    • 方法概要

      所有方法 静态方法 具体方法 
      修饰符和类型 方法 说明
      static double cdf​(org.apache.commons.math3.distribution.RealDistribution dis, java.lang.Number x)
      Cumulative distribution function at x
      static ucar.ma2.Array cdf​(org.apache.commons.math3.distribution.RealDistribution dis, ucar.ma2.Array x)
      Cumulative distribution function at x.
      static double logpdf​(org.apache.commons.math3.distribution.NormalDistribution dis, java.lang.Number x)
      Natural logarithm probability density function at x
      static ucar.ma2.Array logpdf​(org.apache.commons.math3.distribution.NormalDistribution dis, ucar.ma2.Array x)
      Natural logarithm probability density function at x
      static double pdf​(org.apache.commons.math3.distribution.RealDistribution dis, java.lang.Number x)
      Probability density function at x
      static ucar.ma2.Array pdf​(org.apache.commons.math3.distribution.RealDistribution dis, ucar.ma2.Array x)
      Probability density function at x
      static double pmf​(org.apache.commons.math3.distribution.RealDistribution dis, java.lang.Number x)
      Probability mass function (PMF) for the distribution at x.
      static ucar.ma2.Array pmf​(org.apache.commons.math3.distribution.RealDistribution dis, ucar.ma2.Array x)
      Probability mass function (PMF) for the distribution at x.
      static double ppf​(org.apache.commons.math3.distribution.RealDistribution dis, java.lang.Number q)
      Percent point function (inverse of cdf) at q.
      static ucar.ma2.Array ppf​(org.apache.commons.math3.distribution.RealDistribution dis, ucar.ma2.Array q)
      Percent point function (inverse of cdf) at q
      static ucar.ma2.Array rvs​(org.apache.commons.math3.distribution.RealDistribution dis, int n)
      Random variates of given type.

      • 从类继承的方法 java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • 构造器详细资料

      • DistributionUtil

        public DistributionUtil()

    • 方法详细资料

      • rvs

        public static ucar.ma2.Array rvs​(org.apache.commons.math3.distribution.RealDistribution dis,
                                 int n)
        Random variates of given type.
        参数:
        dis - Distribution.
        n - Size.
        返回:
        Rsult array.

      • pdf

        public static double pdf​(org.apache.commons.math3.distribution.RealDistribution dis,
                         java.lang.Number x)
        Probability density function at x
        参数:
        dis - Distribution.
        x - X.
        返回:
        Probability density value.

      • pdf

        public static ucar.ma2.Array pdf​(org.apache.commons.math3.distribution.RealDistribution dis,
                                 ucar.ma2.Array x)
        Probability density function at x
        参数:
        dis - Distribution.
        x - X array.
        返回:
        Probability density array.

      • logpdf

        public static double logpdf​(org.apache.commons.math3.distribution.NormalDistribution dis,
                            java.lang.Number x)
        Natural logarithm probability density function at x
        参数:
        dis - Distribution.
        x - X.
        返回:
        Log probability density value.

      • logpdf

        public static ucar.ma2.Array logpdf​(org.apache.commons.math3.distribution.NormalDistribution dis,
                                    ucar.ma2.Array x)
        Natural logarithm probability density function at x
        参数:
        dis - Distribution.
        x - X array.
        返回:
        Result array.

      • cdf

        public static double cdf​(org.apache.commons.math3.distribution.RealDistribution dis,
                         java.lang.Number x)
        Cumulative distribution function at x
        参数:
        dis - Distribution.
        x - X.
        返回:
        Cumulative distribution value.

      • cdf

        public static ucar.ma2.Array cdf​(org.apache.commons.math3.distribution.RealDistribution dis,
                                 ucar.ma2.Array x)
        Cumulative distribution function at x.
        参数:
        dis - Distribution.
        x - X array.
        返回:
        Result array.

      • pmf

        public static double pmf​(org.apache.commons.math3.distribution.RealDistribution dis,
                         java.lang.Number x)
        Probability mass function (PMF) for the distribution at x.
        参数:
        dis - Distribution.
        x - X.
        返回:
        PMF value.

      • pmf

        public static ucar.ma2.Array pmf​(org.apache.commons.math3.distribution.RealDistribution dis,
                                 ucar.ma2.Array x)
        Probability mass function (PMF) for the distribution at x.
        参数:
        dis - Distribution.
        x - X array.
        返回:
        Result array.

      • ppf

        public static double ppf​(org.apache.commons.math3.distribution.RealDistribution dis,
                         java.lang.Number q)
        Percent point function (inverse of cdf) at q.
        参数:
        dis - Distribution.
        q - Lower tail probability
        返回:
        PMF value.

      • ppf

        public static ucar.ma2.Array ppf​(org.apache.commons.math3.distribution.RealDistribution dis,
                                 ucar.ma2.Array q)
        Percent point function (inverse of cdf) at q
        参数:
        dis - Distribution.
        q - Q array.
        返回:
        Result array.