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Posted to dev@mahout.apache.org by "Dmitriy Lyubimov (JIRA)" <ji...@apache.org> on 2015/06/18 22:35:00 UTC
[jira] [Resolved] (MAHOUT-1599) Add rand() operator to math-scala
[ https://issues.apache.org/jira/browse/MAHOUT-1599?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dmitriy Lyubimov resolved MAHOUT-1599.
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Resolution: Not A Problem
> Add rand() operator to math-scala
> ---------------------------------
>
> Key: MAHOUT-1599
> URL: https://issues.apache.org/jira/browse/MAHOUT-1599
> Project: Mahout
> Issue Type: Improvement
> Components: Math
> Affects Versions: 0.9
> Reporter: Felix Schüler
> Priority: Trivial
> Labels: dsl, math, operator, random, scala
> Fix For: 0.11.0
>
> Attachments: MAHOUT-1599.patch
>
>
> I was looking at the scala-math operators and missed a rand(m, n) operator that generates a m x n matrix filled with random numbers.
> I wanted random numbers from a uniform distribution over a specific interval so I implemented a simple uniform random number generator.
> the rand(m, n, r) function takes any AbstractSamplerFunction and fills the matrix entries with the numbers generated by its sample() method.
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