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From Sean Owen <>
Subject Re: question about condition checking in Mahout
Date Fri, 13 Aug 2010 17:30:52 GMT
Sounds good.

I'm not worried about different behavior, but just inconsistent
implementation of that behavior internally

I think you are likely welcome to be a little aggressive in adding
argument checks. If you flag a precondition that shouldn't be
restricted, it is easy to discover and may well be something that
should be restricted.

On Fri, Aug 13, 2010 at 9:18 AM, Eugen Paraschiv <> wrote:
> Sure, makes sense to do this according to the boyscout principle and based
> on patches. I will start working on such a patch for the code area I'm
> working with, not for the whole project. As for an inconsistent state for
> the condition checking logic, it should not be an issue, as the
> Preconditions class throws the exact *same exceptions* as the ones that are
> thrown manually, so in fact it should behave exactly the same for a client
> of the class.
> About clustering and classification, I have not worked with that portion of
> the code yet - I'm focusing on recommendation algorithms for now.
> Thanks for the feedback, I'll make sure to open the JIRA issue.
> Eugen.

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