@hackage random-fu0.1.3
Random number generation
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License
LicenseRef-PublicDomain
Maintainer
James Cook <james.cook@usma.edu>
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Installation
Dependencies (17)
- MonadPrompt
- array
- base >=4 && <4.2
- containers
- erf
- erf-native Show all…
Dependents (51)
@hackage/fei-datasets, @hackage/linden, @hackage/network-topic-models, @hackage/ascii-cows, @hackage/polysemy-RandomFu, @hackage/Dust-tools, Show all…
Package Flags
base4_2
(on by default)
base-4.2 has an incompatible change in Data.Fixed (HasResolution)
mtl2
(on by default)
mtl-2 has State, etc., as "type" rather than "newtype"
Random number generation based on modeling random
variables in two complementary ways: first, by the
parameters of standard mathematical distributions and,
second, by an abstract type (RVar) which can be
composed and manipulated monadically and sampled in
either monadic or "pure" styles.
The primary purpose of this library is to support
defining and sampling a wide variety of high quality
random variables. Quality is prioritized over speed,
but performance is an important goal too.
In my testing, I have found it capable of speed
comparable to other Haskell libraries, but still
a fair bit slower than straight C implementations of
the same algorithms.
Warning to anyone upgrading from "< 0.1": Discrete
has been renamed Categorical, the entropy source
classes have been redesigned, and many things are no
longer exported from the root module Data.Random
(In particular, DevRandom - this is not available on
windows, so it will likely move to its own package
eventually so that client code dependencies on it will
be made explicit).
Support for "base" packages earlier than version 4
(and thus GHC releases earlier than 6.10) has been
dropped, as too many of this package's dependencies do
not support older versions.
The Data.Random module itself should now have a
relatively stable interface, but the other modules
are still subject to change. Specifically, I am
considering hiding data constructors for most or all
of the distributions.