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From Ted Dunning <>
Subject Re: [Math] MATH-894
Date Thu, 15 Nov 2012 16:01:07 GMT

The typical answer to this when adding a functional method like compute is to also add a view
object. The rationale is that a small number of view methods can be composed with a small
number of compute/aggregate methods to get the expressive power of what would otherwise require
a vast array of methods.  

On Nov 15, 2012, at 7:03 AM, Phil Steitz <> wrote:

> Then in RDA, we add compute(ArrayFunction) as a public method.  Then
> if we make UnivariateStatistic extend this new interface,
> DescriptiveStatistics can get what it needs from this.
> Just at thought.  Would love to get better ideas on this.  What is
> in trunk now works; but having to subclass for internal use makes me
> wonder if we have solved the problem.

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