uniformR package:mwc-probability

uniformR :: (PrimMonad m, Variate a) => (a, a) -> Prob m a
mwc-probability System.Random.MWC.Probability
The uniform distribution over the provided interval. 
>>> sample (uniformR (0, 1)) gen
0.44984153252922365
uniformRM :: (UniformRange a, StatefulGen g m) => (a, a) -> g -> m a
mwc-probability System.Random.MWC.Probability
Generates a value uniformly distributed over the provided range, which is interpreted as inclusive in the lower and upper bound.
  • uniformRM (1 :: Int, 4 :: Int) generates values uniformly from the set <math>
  • uniformRM (1 :: Float, 4 :: Float) generates values uniformly from the set <math>
The following law should hold to make the function always defined: 
uniformRM (a, b) = uniformRM (b, a)
class UniformRange a
mwc-probability System.Random.MWC.Probability
The class of types for which a uniformly distributed value can be drawn from a range.