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https://issues.apache.org/jira/browse/MATH-1346?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gilles updated MATH-1346:
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Issue Type: Sub-task (was: Improvement)
Parent: MATH-1319
> "ValueServer" has various shortcomings
> --------------------------------------
>
> Key: MATH-1346
> URL: https://issues.apache.org/jira/browse/MATH-1346
> Project: Commons Math
> Issue Type: Sub-task
> Reporter: Gilles
> Priority: Minor
> Labels: api, deprecation, outdated
> Fix For: 4.0
>
>
> * It is inefficient as it recreates a distribution instance for each sample
> (through calls to "RandomDataGenerator").
> * It seems to be an aggregation of "EmpiricalDistribution,
> "ExponentialDistribution", "NormalDistribution" and "UniformDistribution".
> * Main purpose seems to allow sampling from those distributions where the
> parameters ("mu" and "sigma") are mutable (but are set to identical values
> for all distributions).
> * Then, there is a basic problem in that those instance variables are not
> always meaningful (for the different modes): field "sigma" only applies to
> the "Gaussian mode" and "mu" does not apply to the "digest mode".
> * The only non-trivial addition (wrt using the distribution classes directly)
> is the file IO but usability is reduced because the class imposes a specific
> format and encoding.
> * The name is deceiving as one could easily assume that the server can be
> accessed from multiple "client" threads.
> IMO, a math library should not be concerned with how data is loaded from
> external sources (such as files), hence this class should perhaps be moved to
> the "examples" part of the repository.
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