Package org.apache.spark.util.random

package org.apache.spark.util.random
Utilities for random number generation.
  • Class
    Description
    BernoulliCellSampler<T>
    :: DeveloperApi :: A sampler based on Bernoulli trials for partitioning a data sequence.
    BernoulliSampler<T>
    :: DeveloperApi :: A sampler based on Bernoulli trials.
    BinomialBounds
    Utility functions that help us determine bounds on adjusted sampling rate to guarantee exact sample size with high confidence when sampling without replacement.
    PoissonBounds
    Utility functions that help us determine bounds on adjusted sampling rate to guarantee exact sample sizes with high confidence when sampling with replacement.
    PoissonSampler<T>
    :: DeveloperApi :: A sampler for sampling with replacement, based on values drawn from Poisson distribution.
    Pseudorandom
    :: DeveloperApi :: A class with pseudorandom behavior.
    RandomSampler<T,U>
    :: DeveloperApi :: A pseudorandom sampler.
    SamplingUtils
     
    StratifiedSamplingUtils
    Auxiliary functions and data structures for the sampleByKey method in PairRDDFunctions.