[MATH-1124] Instances of AbstractRealDistribution require a random generator.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0
• Assignee: Unassigned
• Reporter: Ajo Fod
• Created: 20/May/14 19:50
• Updated: 22/Apr/16 22:31
• Resolved: 22/Apr/16 22:31

Description

A couple of observations:
... The default random generator takes a while to instantiate.
... Many functions of these distributions don't require a random generator. Generally speaking only sampling requires it.
So, why force the default constructor to initialize with a new random generator ... why not use a global generic or simple generator?

Or do away with random generator except for sampling?

This issue was observed with the TDistribution class , but it is probably applicable to many classes as well.

Issue Links

• relates to: MATH-1154 Statistical tests in stat.inference package are very slow due to implicit RandomGenerator initialization
• relates to: MATH-1158 Factory method to provide sampling from distributions