On 9/27/10 09:55 PM, luc.maison...@free.fr wrote:
----- "Gilles Sadowski"<gil...@harfang.homelinux.org> a écrit :
[...]
---CUT---
double[] a = new double[] {1, 2, 3};
double[] b = new double[] {1, 2, 3, 4, 5};
Percentile pA = new Percentile(a);
Percentile pB = new Percentile(b);
double r;
r = pA.evaluate(50);
r = pB.evaluate(50);
r = pA.evaluate(50);
r = pB.evaluate(50);
---CUT---
That way, later calls can benefit from whatever preprocessing was
done in
previous calls.
The instance will always control all the information needed (e.g.
after a
call to an "addValues" method) for the processing without the
need to rely
on the user for calling "clearCache" whenever necessary.
Gilles
+1
I think that is a really good idea and I agree on the points
made.
This proposal is point 4. It breaks the UnivariateStatistic API and
it
breaks what the user found interesting in this API, i.e. have a
general
statistics framework where one statistic can be replaced by another
one.
If you read again one of my earlier messages from today, we will
combine
this method (i.e. evaluate without values) and the
UnivariateStatistics API.
Perhaps we could add these new methods (i.e. addValues and evaluate
without values) to UnivariateStatistics, but this can only be done
on 3.0.
+1
Is it urgent to complicate the code? If the API conflicts with a
necessary
efficiency improvement, why not postpone the change?
I was trying to help Leanne as 3.0 is not going to be ready soon.
I'm OK with a change in 3.0 as pushing these methods up to the interface is
really the best solution.
Thanks Luc for your efforts to help. I'm of course still very interested
in seeing these changes
but I can wait until 3.0 so that the best solution can be implemented
Leanne
--
-----------------------------------------------------------------------
Leanne Guy
Variability Processing Group, Gaia Project, ESA
Observatoire de Geneve / ISDC Astrophysics Data Centre
Chemin d'Ecogia 16, CH-1290 Versoix, Switzerland
Email: leanne.guy-at-unige.ch
Tel: +41 22 379 2151 Fax: +41 (0)22 37 92 135
WWW: http://isdc.unige.ch/~leanne/ Skype: leanneobsge
-----------------------------------------------------------------------
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org
For additional commands, e-mail: dev-h...@commons.apache.org
