Mailing-List: contact dev-help@commons.apache.org; run by ezmlm
Precedence: bulk
Reply-To: "Commons Developers List" <dev@commons.apache.org>
Received-SPF: pass (athena.apache.org: domain of phil.steitz@gmail.com
 designates 209.85.210.41 as permitted sender)
Message-ID: <4EAC2B6D.9090709@gmail.com>
Date: Sat, 29 Oct 2011 09:35:57 -0700
From: Phil Steitz <phil.steitz@gmail.com>
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7;
 rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1
MIME-Version: 1.0
To: Commons Developers List <dev@commons.apache.org>
Subject: Re: [math] Distributions over sample spaces other than R
References: <4EA483FA.9010803@gmail.com>
 <CAJwFCa0eGEhUe=cW-1Fgmh8UOkqDYEoGDU2H9bgtYCLydm9dfA@mail.gmail.com>
 <4EA4C44C.7010606@gmail.com> <1319575141452-3938185.post@n4.nabble.com>
 <1319904439697-3951113.post@n4.nabble.com>
In-Reply-To: <1319904439697-3951113.post@n4.nabble.com>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit

On 10/29/11 9:07 AM, cwinter wrote:
> cwinter wrote:
>> [...] Regarding IntergerDistribution I don't have a preference on leaving
>> it in the current hierarchy or making it to a new root.
>>
>> Christian
>>
> Just now, while pulling inverseCumulativeProbability form
> ContinuousDistribution up to Distribution, I got a conflict with
> IntegerDistribution: IntegerDistribution.inverseCumulativeProbability wants
> to return int which doesn't fit to the return type double of
> Distribution.inverseCumulativeProbability.
> Either the return type has to be changed to double for all integer
> distributions - which is quite annoying - or we need to pull
> IntegerDistribution out of the hierachy - which is my favorite now. For the
> case that there is a requirement for embedding the domain into the reals, we
> could implement the procedure IntegerDistribution.toDiscreteDistribution()
> returning the appropriate DiscreteDistribution.

I would say pull DiscreteDistribution out.  That is where the
difference really lies.  I have thought about suggesting that we
eliminate it altogether; but I still think there may be value in
supporting discrete distributions over sample spaces that are not
embedded in the integers.

Phil
>
> Best Regards,
> Christian
>
>
> --
> View this message in context: http://apache-commons.680414.n4.nabble.com/math-Distributions-over-sample-spaces-other-than-R-tp3931349p3951113.html
> Sent from the Commons - Dev mailing list archive at Nabble.com.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@commons.apache.org
> For additional commands, e-mail: dev-help@commons.apache.org
>
>


---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@commons.apache.org
For additional commands, e-mail: dev-help@commons.apache.org