Re: [MATH] Why no o.a.c.math3.stat.descriptive.moment.QuadraticMean?

2015-10-09 Thread Phil Steitz 
On 10/8/15 2:00 PM, Evan Meagher wrote:
> An application I'm writing has a need to calculate RMS values for series of
> numbers. I can achieve this via `SummaryStatistics.getQuadraticMean`, but
> I'm left wondering why there isn't a corresponding `UnivariateStatistic`
> subclass? It seems to me that a QuadraticMean class within the
> org.apache.commons.math3.stat.descriptive.moment
> package
> 
> would be a reasonable addition to commons-math3.
>
> Would be willing to implement one if there's agreement that it's worth
> introducing.

+1 to add this class for consistency.  Thanks in advance for a patch
with test cases.

Phil
>


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[MATH] Why no o.a.c.math3.stat.descriptive.moment.QuadraticMean?

2015-10-08 Thread Evan Meagher 
An application I'm writing has a need to calculate RMS values for series of
numbers. I can achieve this via `SummaryStatistics.getQuadraticMean`, but
I'm left wondering why there isn't a corresponding `UnivariateStatistic`
subclass? It seems to me that a QuadraticMean class within the
org.apache.commons.math3.stat.descriptive.moment
package

would be a reasonable addition to commons-math3.

Would be willing to implement one if there's agreement that it's worth
introducing.

-- 
Evan Meagher