Hi Gilles,

That sounds eminently sensible to me as an end user.  I'd like my 3rd party
deps to be as small as possible, so a modularised Math is good for me.

Cheers,
Martijn

On 7 December 2017 at 17:05, Gilles <gil...@harfang.homelinux.org> wrote:

> Hi Martijn.
>
> On Tue, 5 Dec 2017 23:45:43 +0000, Martijn Verburg wrote:
>
>> Can this project be forked to a new domain over on GitHub (under the
>> existing Apache license),
>>
>
> It is allowed, of course.  However, I think that it is the
> last option to consider, because it will further dilute the
> community that has an interest in the "Commons Math" codebase.
> For developers and for users, there are practical advantages
> in keeping the spin-off projects within "Commons".
> It is even a more appropriate place than a TLP!
> [In this evaluation, I of course do not account for the
> negative stance of part of the PMC.]
>
> split up and then continued in that case?
>>
>
> The work had started.
> Did you have a look at "Commons RNG"[1] and "Commons Numbers"[2]?
> Both were spun off the development version of "Commons Math"[3].
>
> IMO, current priority is to have an initial (beta?) release of
> "Commons Numbers". There is a list of issues in the bug-tracking
> system:
>   https://issues.apache.org/jira/projects/NUMBERS
>
> An important test must pass (before a release can make sense):
> All the code that was "moved" (to "Numbers") must be removed
> from "Math", and functionalities of the latter must be adapted
> to depend on "Numbers".
>
> Afterwards, a probably easy task would be to create another
> generally useful component out of the "o.a.c.math4.geometry"
> package (no other part of CM depends on it and it has almost
> no dependencies on any other CM class).
> Another easy move would be the code in package "o.a.c.math4.ml"
> (zero cross-dependencies). [Although developer and user of that
> package, I admit that the functionality might currently be too
> limited to warrant a component.]
> Less easy (but quite useful) would be a component based on a
> selection of the functionalities in package "o.a.c.math4.analysis"
> (root solver, interpolation, integration).
>
> The rest of CM is either too advanced or with cross-dependencies
> not easy to untangle and/or too many issues to solve, in order
> to create good components, given the scarce human resources...
>
> Next, we can tackle tasks on CM itself:
> - make modules for functionality that is free of issues and
>   supported, and
> - make a "legacy" module for everything else.
> Then, we head toward a long-overdue release.
>
> Opinions on the plan is appreciated, and help to make progress
> (forward!) is most welcome.
>
> Regards,
> Gilles
>
> [1] https://git1-us-west.apache.org/repos/asf?p=commons-rng.git
> [2] https://git1-us-west.apache.org/repos/asf?p=commons-numbers.git
> [3] https://git1-us-west.apache.org/repos/asf?p=commons-math.git
>
>
>> Cheers,
>> Martijn
>>
>> On 3 December 2017 at 11:51, Gilles <gil...@harfang.homelinux.org> wrote:
>>
>> On Sun, 3 Dec 2017 11:18:18 +0100, Jochen Wiedmann wrote:
>>>
>>> On Fri, Dec 1, 2017 at 2:26 PM, Gilles <gil...@harfang.homelinux.org>
>>>> wrote:
>>>>
>>>> There hasn't been any progress towards a decision.
>>>>
>>>>> There isn't even a consensus on one of the central tenets of
>>>>> Apache ("Those who do the work..."): how sad/strange (?).
>>>>>
>>>>>
>>>> Those who do the work are welcome to decide on their own, if they do
>>>> not involve others.
>>>>
>>>>
>>> The conditional is not part of the well-known mantra.
>>>
>>> The issue here is to answer the question of what to do with
>>> a non-trivial code base.  My stance is to try and fix the
>>> problem(s), a.o. difficult management, by rooting out its
>>> main cause: CM has become an aggregate of components with
>>> completely different subject matters, scopes, designs,
>>> efficiencies, provisions for extension, etc.
>>> [An array of issues which "maven" modules will not solve.]
>>>
>>> We are seemingly faced with a choice between:
>>> 1. Maintain CM as the huge library that it is now.
>>> 2. Incrementally create maintainable components.
>>>
>>> A long time has passed since these alternatives were first
>>> exposed, only proving that none of the people who informally
>>> chose option(1) invested work to make it a reality.
>>>
>>> Refusing option (2) not only "involves others"; it is harming
>>> them (very real people, having done a lot of work here, on
>>> that code base).
>>>
>>> Establishing a new commons component doesn't
>>>
>>>> qualify, IMO.
>>>>
>>>>
>>> True; that's why we are stalled, despite that a majority
>>> of the PMC did not explicitly oppose option (2).
>>>
>>> A handful of PMC people prefer to let the code base become
>>> "dormant" rather than give any chance to an alternate view.
>>> [If, say, you looked at the "Commons RNG" project, and
>>> concluded that, decidedly, this is not how a component
>>> should look like, then I could perhaps fathom out where
>>> those reservations come from.]
>>>
>>> Gilles
>>>
>>>
>>> Jochen
>>>>
>>>>
>
>
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