Probability -- basic probability functions
Description
This package provides a number of basic probability functions. In particular, for both discrete and continuous probability distributions, there are the following four functions:
- density: probability density (or mass) function
- probability: cumulative distribution function
- quantile: quantile function
- random(ProbabilityDistribution): generate random samples
A variety of common probability distributions are supported.
Discrete distributions
Continuous distributions
You may also define your own probability distributions using discreteProbabilityDistribution and continuousProbabilityDistribution.
Caveat
As is always the case when working with real numbers in Macaulay2, unexpected results may occur due to the limitations of floating point arithmetic.
Author
Certification 
Version 0.3 of this package was accepted for publication in volume 14 of Journal of Software for Algebra and Geometry on 2024-01-23, in the article The Probability package for Macaulay2 (DOI: 10.2140/jsag.2024.14.51). That version can be obtained from the journal or from the Macaulay2 source code repository.
Version
This documentation describes version 0.4 of Probability.
Source code
The source code from which this documentation is derived is in the file Probability.m2.
Exports
-
Types
- ContinuousProbabilityDistribution -- see ProbabilityDistribution -- probability distribution class
- DiscreteProbabilityDistribution -- see ProbabilityDistribution -- probability distribution class
- ProbabilityDistribution -- probability distribution class
-
Functions and commands
- betaDistribution -- beta distribution
- bernoulliDistribution -- see binomialDistribution -- binomial distribution
- binomialDistribution -- binomial distribution
- chiSquaredDistribution -- chi-squared distribution
- continuousProbabilityDistribution -- construct a continuous probability distribution
- density -- probability density (or mass) function
- discreteProbabilityDistribution -- construct a discrete probability distribution
- exponentialDistribution -- exponential distribution
- fDistribution -- F-distribution
- gammaDistribution -- gamma distribution
- geometricDistribution -- geometric distribution
- hypergeometricDistribution -- hypergeometric distribution
- negativeBinomialDistribution -- negative binomial distribution
- normalDistribution -- normal distribution
- poissonDistribution -- Poisson distribution
- probability -- cumulative distribution function
- quantile -- quantile function
- tDistribution -- Student's t-distribution
- uniformDistribution -- continuous uniform distribution
-
Methods
- betaDistribution(Constant,Constant) -- see betaDistribution -- beta distribution
- betaDistribution(Constant,Number) -- see betaDistribution -- beta distribution
- betaDistribution(Number,Constant) -- see betaDistribution -- beta distribution
- betaDistribution(Number,Number) -- see betaDistribution -- beta distribution
- bernoulliDistribution(Constant) -- see binomialDistribution -- binomial distribution
- bernoulliDistribution(Number) -- see binomialDistribution -- binomial distribution
- binomialDistribution(ZZ,Constant) -- see binomialDistribution -- binomial distribution
- binomialDistribution(ZZ,Number) -- see binomialDistribution -- binomial distribution
- chiSquaredDistribution(Constant) -- see chiSquaredDistribution -- chi-squared distribution
- chiSquaredDistribution(Number) -- see chiSquaredDistribution -- chi-squared distribution
- continuousProbabilityDistribution(Function) -- see continuousProbabilityDistribution -- construct a continuous probability distribution
- density(DiscreteProbabilityDistribution,Constant) -- see density -- probability density (or mass) function
- density(DiscreteProbabilityDistribution,Number) -- see density -- probability density (or mass) function
- density(ProbabilityDistribution,Constant) -- see density -- probability density (or mass) function
- density(ProbabilityDistribution,Number) -- see density -- probability density (or mass) function
- discreteProbabilityDistribution(Function) -- see discreteProbabilityDistribution -- construct a discrete probability distribution
- exponentialDistribution(Constant) -- see exponentialDistribution -- exponential distribution
- exponentialDistribution(Number) -- see exponentialDistribution -- exponential distribution
- fDistribution(Constant,Constant) -- see fDistribution -- F-distribution
- fDistribution(Constant,Number) -- see fDistribution -- F-distribution
- fDistribution(Number,Constant) -- see fDistribution -- F-distribution
- fDistribution(Number,Number) -- see fDistribution -- F-distribution
- gammaDistribution(Constant,Constant) -- see gammaDistribution -- gamma distribution
- gammaDistribution(Constant,Number) -- see gammaDistribution -- gamma distribution
- gammaDistribution(Number,Constant) -- see gammaDistribution -- gamma distribution
- gammaDistribution(Number,Number) -- see gammaDistribution -- gamma distribution
- geometricDistribution(Constant) -- see geometricDistribution -- geometric distribution
- geometricDistribution(Number) -- see geometricDistribution -- geometric distribution
- hypergeometricDistribution(ZZ,ZZ,ZZ) -- see hypergeometricDistribution -- hypergeometric distribution
- negativeBinomialDistribution(Constant,Constant) -- see negativeBinomialDistribution -- negative binomial distribution
- negativeBinomialDistribution(Constant,Number) -- see negativeBinomialDistribution -- negative binomial distribution
- negativeBinomialDistribution(Number,Constant) -- see negativeBinomialDistribution -- negative binomial distribution
- negativeBinomialDistribution(Number,Number) -- see negativeBinomialDistribution -- negative binomial distribution
- normalDistribution(Constant,Constant) -- see normalDistribution -- normal distribution
- normalDistribution(Constant,Number) -- see normalDistribution -- normal distribution
- normalDistribution(Number,Constant) -- see normalDistribution -- normal distribution
- normalDistribution(Number,Number) -- see normalDistribution -- normal distribution
- poissonDistribution(Constant) -- see poissonDistribution -- Poisson distribution
- poissonDistribution(Number) -- see poissonDistribution -- Poisson distribution
- probability(DiscreteProbabilityDistribution,Constant) -- see probability -- cumulative distribution function
- probability(DiscreteProbabilityDistribution,Number) -- see probability -- cumulative distribution function
- probability(ProbabilityDistribution,Constant) -- see probability -- cumulative distribution function
- probability(ProbabilityDistribution,Number) -- see probability -- cumulative distribution function
- net(ProbabilityDistribution) -- see ProbabilityDistribution -- probability distribution class
- quantile(DiscreteProbabilityDistribution,Constant) -- see quantile -- quantile function
- quantile(DiscreteProbabilityDistribution,Number) -- see quantile -- quantile function
- quantile(ProbabilityDistribution,Constant) -- see quantile -- quantile function
- quantile(ProbabilityDistribution,Number) -- see quantile -- quantile function
- random(ProbabilityDistribution) -- randomly generate samples from probability distribution
- tDistribution(Constant) -- see tDistribution -- Student's t-distribution
- tDistribution(Number) -- see tDistribution -- Student's t-distribution
- uniformDistribution(Constant,Constant) -- see uniformDistribution -- continuous uniform distribution
- uniformDistribution(Constant,Number) -- see uniformDistribution -- continuous uniform distribution
- uniformDistribution(Number,Constant) -- see uniformDistribution -- continuous uniform distribution
- uniformDistribution(Number,Number) -- see uniformDistribution -- continuous uniform distribution
-
Symbols
- DensityFunction -- probability density function
- DistributionFunction -- cumulative density function
- LowerTail -- whether to computer lower tail probabilities
- QuantileFunction -- quantile function
- RandomGeneration -- random generation function
- Support -- support for probability distribution
For the programmer
The object Probability is a package.