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  1. Commons Math
  2. MATH-1319 Refactor the package "o.a.c.m.random"
  3. MATH-1335

Factor out RNG implementations

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    Description

      The package o.a.c.m.random contains a kludge of utilities related to random data generation (cf. section 2 of the userguide).

      I propose to factor out the part that is concerned with the generation of uniformly distributed numbers (of the various Java types).
      This will consist in deprecating the following classes in o.a.c.m.random:

      • JDKRandomGenerator
      • AbstractWell
      • Well512a
      • Well1024a
      • Well19937a
      • Well19937c
      • Well44497a
      • Well44497b
      • ISAACRandom
      • MersenneTwister
      • AbstractRandomGenerator
      • BitsStreamGenerator
      • RandomGeneratorFactory
      • RandomGenerator

      The RNG functionality is to be defined in its own package.

      The new design will make an explicit distinction between

      • public (and hopefully stable) API
      • internal classes (subject to change "without notice")

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          incorporates

          Sub-task - The sub-task of the issue MATH-1327 Assessment of the quality of the random number generators

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          New Feature - A new feature of the product, which has yet to be developed. MATH-1336 64-bits based RNG

          • Major - Major loss of function.
          • Resolved
          is depended upon by

          New Feature - A new feature of the product, which has yet to be developed. MATH-1158 Factory method to provide sampling from distributions

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          relates to

          Sub-task - The sub-task of the issue MATH-1360 Replace usage (within CM) of old RNG API

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Task - A task that needs to be done. MATH-1366 Remove obsolete classes in "o.a.c.m.random"

          • Trivial - Cosmetic problem like misspelt words or misaligned text.
          • Resolved

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              erans Gilles Sadowski
              erans Gilles Sadowski
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                Updated:
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