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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 20112] New: - [math] More data generation utilities
Date Wed, 21 May 2003 13:11:18 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=20112

[math]  More data generation utilities

           Summary: [math]  More data generation utilities
           Product: Commons
           Version: Nightly Builds
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Enhancement
          Priority: Other
         Component: Sandbox
        AssignedTo: commons-dev@jakarta.apache.org
        ReportedBy: phil@steitz.com


EmpiricalDistribution -- represents an empirical probability distribution and
supports generation of data values that are "like" values in an input file
without making any assumptions about the functional form of the probability
distribution that the data come from.   This is useful in simulation
applications where historical data about component performance are available but
do not follow standard distributions (or any application that requires random
data generation from an empirical distribution). Also generates data for grouped
frequency histograms based on the input file.

ValueServer -- a wrapper for RandomData and EmpiricalDistribution that generates
values in each of the following modes:
  * DIGEST_MODE -- uses an empirical distribution
  * REPLAY_MODE -- replays data from an input file 
  * UNIFORM_MODE -- generates uniformly distributed random values
  * EXPONENTIAL_MODE -- generates exponentially distributed random 
                        values
  * GAUSSIAN_MODE -- generates Gaussian distributed random values 
  * CONSTANT_MODE -- returns the same value every time.

Attaching tar with interface, implementation, test classes and a test data file.
 The test data file needs to go in src/test/.../math

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