Numeric.Probability.Random

Randomized values

random generator

newtype T a

Random values

Constructors

Cons

Fields

• decons :: State StdGen a

Instances

Monad T

Defined in Numeric.Probability.Random

Methods

(>>=) :: T a -> (a -> T b) -> T b

(>>) :: T a -> T b -> T b

return :: a -> T a

fail :: String -> T a

Functor T

Defined in Numeric.Probability.Random

Methods

fmap :: (a -> b) -> T a -> T b

(<$) :: a -> T b -> T a

Applicative T

Defined in Numeric.Probability.Random

Methods

pure :: a -> T a

(<*>) :: T (a -> b) -> T a -> T b

liftA2 :: (a -> b -> c) -> T a -> T b -> T c

(*>) :: T a -> T b -> T b

(<*) :: T a -> T b -> T a

C T

Defined in Numeric.Probability.Simulation

Methods

(~.) :: (Fractional prob, Ord prob, Random prob, Ord a) => Int -> (a -> T a) -> Transition prob a

(~..) :: (Fractional prob, Ord prob, Random prob, Ord a) => (Int, Int) -> (a -> T a) -> RExpand prob a

(~*.) :: (Fractional prob, Ord prob, Random prob, Ord a) => (Int, Int) -> (a -> T a) -> Transition prob a

C Double T

Defined in Numeric.Probability.Object

Methods

fromFrequencies :: [(a, Double)] -> T a

randomR :: Random a => (a, a) -> T a

run :: T a -> IO a

Run random action in IO monad.

runSeed :: StdGen -> T a -> a

Run random action without IO using a seed.

print :: Show a => T a -> IO ()

pick :: (Num prob, Ord prob, Random prob) => T prob a -> T a

random distribution

type Distribution prob a = T (T prob a)

Randomized distribution

above :: (Num prob, Ord prob, Ord a) => prob -> Distribution prob a -> Distribution prob (Select a)

below :: (Num prob, Ord prob, Ord a) => prob -> Distribution prob a -> Distribution prob (Select a)

dist :: (Fractional prob, Ord a) => [T a] -> Distribution prob a

dist converts a list of randomly generated values into a distribution by taking equal weights for all values. Thus dist (replicate n rnd) simulates rnd n times and returns an estimation of the distribution represented by rnd.

Randomized changes

type Change a = a -> T a

random change

change :: (Num prob, Ord prob, Random prob) => T prob a -> Change a

Randomized transitions

type Transition prob a = a -> Distribution prob a

random transition

type ApproxDist a = T [a]