# mwc-probability: Sampling function-based probability distributions.

A simple probability distribution type, where distributions are characterized by sampling functions.

This implementation is a thin layer over `mwc-random`

, which handles RNG
state-passing automatically by using a `PrimMonad`

like `IO`

or `ST s`

under
the hood.

Includes Functor, Applicative, Monad, and MonadTrans instances.

*Examples*

Transform a distribution's support while leaving its density structure invariant:

-- uniform over [0, 1] to uniform over [1, 2] succ <$> uniform

Sequence distributions together using bind:

-- a beta-binomial conjugate distribution beta 1 10 >>= binomial 10

Use do-notation to build complex joint distributions from composable, local conditionals:

hierarchicalModel = do [c, d, e, f] <- replicateM 4 $ uniformR (1, 10) a <- gamma c d b <- gamma e f p <- beta a b n <- uniformR (5, 10) binomial n p

Versions [faq] | 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.3, 1.2.0, 1.2.1, 1.2.2, 1.3.0, 2.0.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4 |
---|---|

Dependencies | base (<5), mwc-random, primitive, transformers [details] |

License | MIT |

Author | Jared Tobin |

Maintainer | jared@jtobin.ca |

Category | Math |

Home page | http://github.com/jtobin/mwc-probability |

Source repo | head: git clone http://github.com/jtobin/mwc-probability.git |

Uploaded | by JaredTobin at Tue Oct 6 07:32:53 UTC 2015 |

Distributions | LTSHaskell:2.0.4, NixOS:2.0.4, Stackage:2.0.4 |

Downloads | 3773 total (38 in the last 30 days) |

Rating | (no votes yet) [estimated by rule of succession] |

Your Rating | |

Status | Docs available [build log] Last success reported on 2015-10-06 [all 1 reports] |

## Downloads

- mwc-probability-1.0.0.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)