[math] Go back to the basics

2016-06-23 Thread Dimitri Pourbaix
. There is presently no consensus, not even on what the content of the Swiss knife should be! Rather than rushing into several votes, first agree upon what textbook should be used to define the core of any math library. Regards, Dimitri Pourbaix

Re: [Math] Remove BOBYQAOptimizer

2013-01-02 Thread Dimitri Pourbaix
be multiplied as well otherwise. Best wishes for 2013. Dim. Dimitri Pourbaix * Don't worry, be happy Institut d'Astronomie et d'Astrophysique * and CARPE DIEM. CP 226, office 2.N4.211, building

Re: [math] major problem with new released version 3.1

2012-12-30 Thread Dimitri Pourbaix
. Dimitri Pourbaix * Don't worry, be happy Institut d'Astronomie et d'Astrophysique * and CARPE DIEM. CP 226, office 2.N4.211, building NO * Universite Libre de Bruxelles* Tel : +32-2-650.35.71 Boulevard du Triomphe

Re: [math] major problem with new released version 3.1

2012-12-29 Thread Dimitri Pourbaix
. In conclusion: the old CM 3.0 API was enough! :) Regards, Dim. Dimitri Pourbaix * Don't worry, be happy Institut d'Astronomie et d'Astrophysique * and CARPE DIEM. CP 226, office 2

Re: [math] major problem with new released version 3.1

2012-12-28 Thread Dimitri Pourbaix
is in trouble and you want a quick fix. Maybe such a test would have been need BEFORE the release! Regards, Dim. Dimitri Pourbaix * Don't worry, be happy Institut d'Astronomie et d'Astrophysique

Re: [math] major problem with new released version 3.1

2012-12-28 Thread Dimitri Pourbaix
releases to be perfect. We do our best, with the resources we have. I perfectly understand this but focusing those resources less on rules and more on real cases might help. Regards, Dim. Dimitri Pourbaix

Re: [math] major problem with new released version 3.1

2012-12-28 Thread Dimitri Pourbaix
. Dimitri Pourbaix * Don't worry, be happy Institut d'Astronomie et d'Astrophysique * and CARPE DIEM. CP 226, office 2.N4.211, building NO * Universite Libre de Bruxelles* Tel : +32-2

Re: [Math] Old to new API (MultivariateDifferentiable(Vector)Function)

2012-11-30 Thread Dimitri Pourbaix
framework? Great, another user, not just yet another OO programmer! Regards, Dim. Dimitri Pourbaix * Don't worry, be happy Institut d'Astronomie et d'Astrophysique * and CARPE DIEM. CP

Re: [math] Deprecating

2012-05-06 Thread Dimitri Pourbaix
. Dimitri Pourbaix * Don't worry, be happy Institut d'Astronomie et d'Astrophysique * and CARPE DIEM. CP 226, office 2.N4.211, building NO * Universite Libre de Bruxelles* Tel : +32-2-650.35.71

Re: [math] Deprecating

2012-05-04 Thread Dimitri Pourbaix
guessParametersErrors() into getParametersConfidenceIntervalHalfWidth() would help avoiding the confusion. Regards, Dim. Dimitri Pourbaix * Don't worry, be happy Institut d'Astronomie et d'Astrophysique

Re: [math] Deprecating

2012-05-03 Thread Dimitri Pourbaix
are concerned, we do quote sigma (without any additional factor) as the uncertainty of/formal error on a parameter. Regards, Dim. Dimitri Pourbaix * Don't worry, be happy Institut d'Astronomie et

Re: [math] [sandbox] merging Apache Commons BSP into Apache Commons Math

2011-05-14 Thread Dimitri Pourbaix
, Dim. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM. Universite Libre de Bruxelles

Re: [math] [sandbox] merging Apache Commons BSP into Apache Commons Math

2011-05-14 Thread Dimitri Pourbaix
democracy, there is nothing such as a veto! I am not 'vetoing' anything (and do not want to), I am only expressing my opinion, as requested, to Luc's wish to add this component to math. Regards, Dim. Dimitri Pourbaix

Re: [math] [sandbox] merging Apache Commons BSP into Apache Commons Math

2011-05-14 Thread Dimitri Pourbaix
a better policity for decision making on 'issues' different from bug fixes. Regards, Dim. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211

Re: [VOTE] Release math 2.2 based on RC6

2011-02-27 Thread Dimitri Pourbaix
. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM. Universite Libre de Bruxelles* Boulevard du Triomphe* Tel : +32-2

Re: [CANCELLED] Re: [VOTE] Release math 2.2 based on RC4

2011-02-25 Thread Dimitri Pourbaix
though I look forward for an official release of 2.2, may I suggest that you take the weekend off before any new RC? I am not sure this kind of rush is, in fine, very efficient. Regards, Dim. Dimitri Pourbaix

Re: [math] Getting 2.2 out (or, Santa nous a laissé le charbon, mais peut-être par la Nouvelle Année...)

2010-12-26 Thread Dimitri Pourbaix
. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM. Universite Libre de Bruxelles* Boulevard du Triomphe

Re: [VOTE] Accept the package name/artifactId guideline as a rule...

2010-11-25 Thread Dimitri Pourbaix
**? Either binary compatibility is broken or it is not, it does not matter how many other packages are impacted. Dim. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy

Re: [math] speeding up percentile based statistics

2010-09-18 Thread Dimitri Pourbaix
of the same aray and sort it only once!). Dim. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM

Re: [math] speeding up percentile based statistics

2010-09-18 Thread Dimitri Pourbaix
the median in just n iterations (i.e. reading the array only once). Dim. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building

Re: [math] speeding up percentile based statistics

2010-09-18 Thread Dimitri Pourbaix
Ted, O(n), not n Expected case is n + n/2 + n/4 ... 2n Yes, that I am already more incline to buy. Dim. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry

[Math] AbstractLeastSquaresOptimizer: (un)weighted quantities

2010-08-15 Thread Dimitri Pourbaix
therefore be kept separately? Same question about the genuine residuals (i.e. unweighted). Otherwise, I would drop the two unweighted fields. Regards, Dim. Dimitri Pourbaix * Institut

Re: [Math] AbstractLeastSquaresOptimizer: (un)weighted quantities

2010-08-15 Thread Dimitri Pourbaix
useful. Right now, there is no accessor to the residuals either. Regards, Dim. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211

[Math] outcome of MATH-405

2010-08-11 Thread Dimitri Pourbaix
do you think? Regards, Dim. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM. Universite

Re: [Math] outcome of MATH-405

2010-08-11 Thread Dimitri Pourbaix
. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM. Universite Libre de Bruxelles* Boulevard du Triomphe

Re: [VOTE] Release math 2.1 based on RC3

2010-03-30 Thread Dimitri Pourbaix
to use I think). I would advocate for the generalisation of Junit 4.x tests whenever possible. Dim. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226

Re: [VOTE] Release math 2.1 based on RC3

2010-03-30 Thread Dimitri Pourbaix
version 1.7.0 java version 1.6.0_17 Java(TM) SE Runtime Environment (build 1.6.0_17-b04) Java HotSpot(TM) 64-Bit Server VM (build 14.3-b01, mixed mode) Junit 3.8.2-1 and 4.3.1-4 Dim. Dimitri Pourbaix

Re: [VOTE] Release math 2.1 based on RC3

2010-03-30 Thread Dimitri Pourbaix
Jorg, With Ant 1.7.0 all tests pass for me also. It seems that Ant 1.6.5 simply does not yet support JUnit 4.x OOTB. Are we supposed to guarantee backward compatibility that old? Regards, Dim. Dimitri Pourbaix

Re: [VOTE] Release math 2.1 based on RC3

2010-03-30 Thread Dimitri Pourbaix
Votes, please. This vote will close in 72 hours, 0400 GMT 31-March 2010 [ ] +1 Release these artifacts [ ] +0 OK, but... [ ] -0 OK, but really should fix... [ ] -1 I oppose this release because... +1 Dim. Dimitri

Re: Math Release 2.1 SVD

2010-03-26 Thread Dimitri Pourbaix
or null elements, V is a p times; n orthogonal matrix (hence VsupT/sup is also orthogonal) where p=min(m,n). Dim. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry

Re: [math] Status of MATH-327?

2010-03-19 Thread Dimitri Pourbaix
. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM. Universite Libre de Bruxelles* Boulevard du Triomphe* Tel : +32-2

Re: [math] Status of MATH-327?

2010-03-17 Thread Dimitri Pourbaix
. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM. Universite Libre de Bruxelles* Boulevard

Re: [math] Status of MATH-327?

2010-03-17 Thread Dimitri Pourbaix
there. Otherwise, it will be in 2.2. Dim. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM

[math] Status of MATH-327?

2010-03-15 Thread Dimitri Pourbaix
in January 28: there is still one spurious non zero singular value (3.547702387229884E-7 which I am going to try to kick out) instead of two. Dim. Dimitri Pourbaix * Institut d'Astronomie et

Re: [math] 2.1 Release plan

2010-03-14 Thread Dimitri Pourbaix
the matrix itself. I agree to put WON'T FIX for 321 unless someone can come up with an example showing that that, for a sparse matrix, the present version does not return the right answer. Dim. Dimitri Pourbaix

Re: [math] 2.1 Release plan

2010-03-14 Thread Dimitri Pourbaix
. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM. Universite Libre de Bruxelles* Boulevard du Triomphe

[MATH] Comment on MATH-352

2010-03-10 Thread Dimitri Pourbaix
. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM. Universite Libre de Bruxelles* Boulevard du

Re: [MATH] Comment on MATH-352

2010-03-10 Thread Dimitri Pourbaix
or completely fail depending on the rank we (badly) compute. Do you want to take care of this issue ? Yes, I will work on that next week. Dim. Dimitri Pourbaix * Institut d'Astronomie et

Re: svn commit: r912413 - in /commons/proper/math/trunk/src: main/java/org/apache/commons/math/linear/EigenDecompositionImpl.java main/java/org/apache/commons/math/linear/SingularValueDecompositionImp

2010-02-22 Thread Dimitri Pourbaix
. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM. Universite Libre de Bruxelles* Boulevard du Triomphe

Insuffisent privillege to modify Jira issue status

2010-02-16 Thread Dimitri Pourbaix
. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM. Universite Libre de Bruxelles* Boulevard du

Re: [math] MATH-333 and 320 solved together?

2010-02-10 Thread Dimitri Pourbaix
. Regards, Dim. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM. Universite Libre de

Re: [math] Work going on on SVD

2010-02-02 Thread Dimitri Pourbaix
! Regards, Dim. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM. Universite Libre de

Re: [MATH] Remove unnecessary suite() methods from test classes?

2010-01-22 Thread Dimitri Pourbaix
-unsubscr...@commons.apache.org For additional commands, e-mail: dev-h...@commons.apache.org Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211

Re: [VOTE] Release Math 2.0

2009-08-04 Thread Dimitri Pourbaix
ago and could not quickly find it so I do not its present status. Regards, Dim. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211

Re: [VOTE] [math] top-level package name

2009-05-20 Thread Dimitri Pourbaix
convinced that the release number should NOT be part of the name, I change my vote to +1. I do not want to share any responsibility in any jar hell/mess. :) Regards, Dim. Dimitri Pourbaix

Re: [VOTE] [math] top-level package name

2009-05-19 Thread Dimitri Pourbaix
. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM. Universite Libre de Bruxelles* Boulevard du Triomphe

Re: [math] optimization refactoring

2009-02-22 Thread Dimitri Pourbaix
. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building NO * and CARPE DIEM. Universite Libre de Bruxelles* Boulevard du Triomphe

Re: [math] adding absolute accuracy threshold to integrators

2009-01-18 Thread Dimitri Pourbaix
* (Math.abs(s)+Math.abs(olds)) { ... } Dim. Dimitri Pourbaix * Institut d'Astronomie et d'Astrophysique * Don't worry, be happy CP 226, office 2.N4.211, building