mwc-random-monad 0.7 → 0.7.1.0

raw patch · 3 files changed

+82/−3 lines, 3 filesdep ~mwc-randomPVP ok

version bump matches the API change (PVP)

Dependency ranges changed: mwc-random

API changes (from Hackage documentation)

Files

• ChangeLog +8/−0
• System/Random/MWC/Distributions/Monad.hs +67/−0
• mwc-random-monad.cabal +7/−3

@@ -0,0 +1,8 @@+Changes in 0.7.1.0++  * New functions from mwc-random-0.13.2.0++  +Changes in 0.7.0.1++  * Unbreak build for GHC <= 7.2.2

@@ -1,3 +1,4 @@+{-# LANGUAGE FlexibleContexts #-} -- | -- Module    : System.Random.MWC.Monad -- Copyright : (c) 2010-2012 Aleksey Khudyakov@@ -9,18 +10,31 @@ -- -- Monadic wrapper for various distributions generators. module System.Random.MWC.Distributions.Monad (+    -- * Variates: non-uniformly distributed values+    -- ** Continuous distributions     normal   , standard   , exponential   , truncatedExp   , gamma   , chiSquare+  , beta+      -- ** Discrete distribution+  , categorical   , geometric0   , geometric1+  , bernoulli+    -- ** Multivariate+  , dirichlet+    -- * Permutations+  , uniformPermutation+  , uniformShuffle   ) where  import Control.Monad.Primitive.Class (MonadPrim(..)) +import Data.Vector.Generic (Vector)+import Data.Traversable    (Traversable) import qualified System.Random.MWC.Distributions as MWC import System.Random.MWC.Monad @@ -86,3 +100,56 @@            -> Rand m Int geometric1 p = toRand $ \g -> MWC.geometric1 p g {-# INLINE geometric1 #-}++-- | Random variate generator for Beta distribution+beta :: MonadPrim m+     => Double            -- ^ alpha (>0)+     -> Double            -- ^ beta  (>0)+     -> Rand m Double+{-# INLINE beta #-}+beta a b = toRand $ \g -> MWC.beta a b g++-- | Random variate generator for Dirichlet distribution+dirichlet :: (MonadPrim m, Traversable t)+          => t Double          -- ^ container of parameters+          -> Rand m (t Double)+{-# INLINE dirichlet #-}+dirichlet t = toRand $ \g -> MWC.dirichlet t g++-- | Random variate generator for Bernoulli distribution+bernoulli :: (MonadPrim m)+          => Double            -- ^ Probability of success (returning True)+          -> Rand m Bool+{-# INLINE bernoulli #-}+bernoulli p = toRand $ \g -> MWC.bernoulli p g++-- | Random variate generator for categorical distribution.+--+--   Note that if you need to generate a lot of variates functions+--   "System.Random.MWC.CondensedTable" will offer better+--   performance.  If only few is needed this function will faster+--   since it avoids costs of setting up table.+categorical :: (MonadPrim m, Vector v Double)+            => v Double          -- ^ List of weights [>0]+            -> Rand m Int+{-# INLINE categorical #-}+categorical v = toRand $ \g -> MWC.categorical v g+++-- | Random variate generator for uniformly distributed permutations.+--   It returns random permutation of vector /[0 .. n-1]/.+--+--   This is the Fisher-Yates shuffle+uniformPermutation :: (MonadPrim m, Vector v Int)+                   => Int+                   -> Rand m (v Int)+{-# INLINE uniformPermutation #-}+uniformPermutation n = toRand $ \g -> MWC.uniformPermutation n g++-- | Random variate generator for a uniformly distributed shuffle of a+--   vector.+uniformShuffle :: (MonadPrim m, Vector v a, Vector v Int)+               => v a+               -> Rand m (v a)+{-# INLINE uniformShuffle #-}+uniformShuffle xs = toRand $ \g -> MWC.uniformShuffle xs g

@@ -1,5 +1,5 @@ Name:                mwc-random-monad-Version:             0.7+Version:             0.7.1.0 License:             BSD3 License-file:        LICENSE Author:              Alexey Khudyakov <alexey.skladnoy@gmail.com>@@ -11,6 +11,8 @@ Synopsis:            Monadic interface for mwc-random Description:            Simple monadic interface for mwc-random.+extra-source-files:+  ChangeLog  Library   build-depends:@@ -19,12 +21,14 @@     primitive,     monad-primitive,     vector     >= 0.7,-    mwc-random >= 0.13+    mwc-random >= 0.13.2.0   Exposed-modules:     System.Random.MWC.Monad     System.Random.MWC.Distributions.Monad     System.Random.MWC.CondensedTable.Monad-  Ghc-options:       -O2 -Wall -fsimpl-tick-factor=500+  if impl(GHC > 7.2.2)+    Ghc-options:     -fsimpl-tick-factor=500+  Ghc-options:       -O2 -Wall   Ghc-prof-options:  -auto-all  source-repository head