Le 16/08/2012 23:48, sebb a écrit :
> On 16 August 2012 21:58, Gilles Sadowski <gil...@harfang.homelinux.org> wrote:
>> Hello.
>>
>> In classes "HarmonicFitter" and "GaussianFitter" (in package
>> "o.a.c.m.optimization.fitting"), there is an inner class "ParameterGuesser".
>> All the necessary input for the guessing procedure is passed to the
>> constructor; I thus propose that the guessing is performed at object
>> construction rather than at the call to the "guess()" method. This will
>> allow to declare all the fields "final". Moreover, all that can go wrong
>> will be located in the constructor, turning the "guess" method into a mere
>> accessor.

+1 to Gilles suggestion.

> 
> On the face of it, it sounds like the class does not even need to be
> instantiated.
> Could the guess method be turned into a static utility method to which
> the parameters are passed?
> Why bother creating an instance only to return the guess later?

It could be. There are a bunch of methods involved and they exchange
data which is now stored in a few class fields (observation arrays and
the three estimated parameters), so these data should be added as
parameters to the static functions.

I'm not sure whether it is cleaner to have a small instance created for
a short time to perform some difficult preprocessing or to have a bunch
of static methods.

Luc

> 
>> OK?
>> If so, do I need to file a JIRA ticket for this change?
>>
>>
>> Regards,
>> Gilles
>>
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