GammaDistribution class

The gamma distribution.

See https://en.wikipedia.org/wiki/Gamma-distribution

Inheritance

• Object
• Distribution<double>
• ContinuousDistribution
• GammaDistribution

Constructors

GammaDistribution(double shape, double scale)

A gamma distribution with parameters shape k and scale θ.

const

GammaDistribution.shape(double shape)

factory

Properties

defaultToStringPrinter → ObjectPrinter

Override to configure the empty ObjectPrinter.

no setter, inherited

hashCode → int

The hash code for this object.

no setter, override

kurtosisExcess → double

Returns the excess kurtosis.

no setter, override

lowerBound → double

Returns the lower boundary of the distribution.

no setter, inherited

mean → double

Returns the mean value of the distribution.

no setter, override

median → double

Returns the median value of the distribution.

no setter, override

mode → double

Returns the mode, a value that appears most commonly in the set of values.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

scale → double

The scale parameter θ.

final

shape → double

The shape parameter k.

final

skewness → double

Returns the skewness of the distribution.

no setter, override

standardDeviation → double

Returns the expected standard deviation.

no setter, inherited

support → Interval<double>

Returns the domain of the distribution.

no setter, override

toStringPrinter → ObjectPrinter

Override and call super to add values to the ObjectPrinter.

no setter

upperBound → double

Returns the upper boundary of the distribution.

no setter, inherited

variance → double

Returns the expected variance.

no setter, override

Methods

cumulativeProbability(double x) → double

The Cumulative Distribution Function (CDF).

override

inverseCumulativeProbability(num p) → double

The Inverse Cumulative Distribution Function (PPT), or quantile function.

override

inverseSurvival(num p) → double

Inverse Survival Function (ISF).

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

probability(double x) → double

The Probability Density/Mass Function (PDF/PMF).

override

sample({Random? random}) → double

Returns a single sample of a random value within the distribution.

override

samples({Random? random}) → Iterable<double>

Returns an infinite source of random samples within the distribution.

inherited

survival(double x) → double

The Survival Function (SF), or Complementary cumulative distribution function.

inherited

toString() → String

Standard toString implementation. Do not override, instead implement toStringPrinter to customize.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

override