After reading more about the proposed changes, I am now comfortable with
dividing the library into separate components. However, I have two
concerns. First, a package or class that passes unit tests should not be
abandoned or depricated just because there is no one to support it. It
should only be
I think it would be better to spend the time trying to recruit new contributors
than it would be to alienate existing ones. Also, the effort required to divide
the library into smaller parts would be better spent creating patches.
Does anyone have ideas for actively recruiting contributors? Do
The Apache commons math library already has a reputation and is well kvown.
Any name that does not involve the words Apache and math will require a lot
of rebranding or years of explaining to people that the TLP named X is
really just the library formerly known as commons math. Removing "commons"
f
Apache Math
-Original Message-
From: Phil Steitz [mailto:phil.ste...@gmail.com]
Sent: Monday, February 01, 2016 12:07 PM
To: Commons Developers List
Subject: [math] [POLL] new TLP name
Please select your top choice among the following suggested names for the new
[math]-based TLP. All a
There are various ways to compute percentiles and statistical programs use
different methods by default. I would prefer that we do like R and provide
multiple options for the type of percentile computation. See
http://stat.ethz.ch/R-manual/R-patched/library/stats/html/quantile.html
Patrick
--
+1
-Original Message-
From: Luc Maisonobe [mailto:l...@spaceroots.org]
Sent: Sunday, May 11, 2014 5:56 AM
To: Commons Developers List
Subject: [VOTE] Release Math 3.3 based on RC3 (second run after mail outage)
Hi all,
As I am not sure this message will be recovered after mail outage, I
+1
-Original Message-
From: Thomas Neidhart [mailto:thomas.neidh...@gmail.com]
Sent: Thursday, May 1, 2014 12:16 PM
To: dev@commons.apache.org
Subject: [VOTE] Release Math 3.3 based on RC2
Hi all,
I would like to call a vote to release Commons Math 3.3 based on RC2.
Changes since RC1:
Thanks!
-Original Message-
From: Gilles [mailto:gil...@harfang.homelinux.org]
Sent: Wednesday, April 30, 2014 6:21 PM
To: dev@commons.apache.org
Subject: RE: [VOTE] Release Math 3.3 based on RC1
On Wed, 30 Apr 2014 09:30:37 -0400, Patrick Meyer wrote:
> MATH-1092 appear to be unresol
MATH-1092 appear to be unresolved but a path was submitted. Is it possible
to include this patch in 3.3?
-Original Message-
From: Thomas Neidhart [mailto:thomas.neidh...@gmail.com]
Sent: Tuesday, April 29, 2014 4:08 PM
To: dev@commons.apache.org
Subject: [VOTE] Release Math 3.3 based on
nding singular vectors are also valid singular vectors.
On Sat, Feb 15, 2014 at 4:09 AM, Patrick Meyer wrote:
> Thanks Ted. As I mentioned my knowledge of SVD is limited, and I was
> not aware that it is OK to have a different order of the first two
> columns in the results (or the co
s that the order of the corresponding left and right
singular vectors are different and there are sign changes in the singular
vectors.
My guess is that you will get the same results in Apache Commons Math.
On Fri, Feb 14, 2014 at 6:07 PM, Patrick Meyer wrote:
> Hi,
>
>
>
> I am
Hi,
I am using the SingularValueDecomposition class with a matrix but it gives
me a different result than R. My knowledge of SVD is limited, so any advice
is welcomed.
Here's the method in Java
public void svdTest(){
double[][] x = {
{1.0, -0.05307180786272
My vote was not directed toward the technical merits of the optimization
package. I am not an expert on optimization and I trust you in this regard.
My vote was a comment on the usability of the API. I find it to be
increasing difficult to use.
Maybe I have missed some refactoring, but why all
>You have done a pretty good job in making the optimization package
non-sensical to user.
+1
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Please do not remove BOBYQAOptimizer from CM. It works quite well for me. I
have a function that takes two parameters. BOBYQAOptimizer finds the right
solution. In 3.0 NonlinearConjugateGradientOptimizer (without the multiple
starts) would never find the right solution. Now that I have switched to
Hi Phil,
I use various parts of Commons Math (CM) for a program I created for
psychometrics called jMetrik, www.ItemAnalysis.com. It does a variety of
statistical procedures from basic descriptive statistics to item response
theory and test equating. jMetrik has a fairly large international user
b
rd wrote:
>>>>>>>>>> Hi,
>>>>>>>>>>
>>>>>>>>>> 2012/11/8 Gilles Sadowski :
>>>>>>>>>>> On Thu, Nov 08, 2012 at 09:39:00AM +0100, Thomas Neidhart wrote:
>>>>>>>>>&g
I misunderstood an earlier email and I though the compute method was public. It
seems that adding a public compute method may be more complication and effort
than it is worth. My apologies for the misunderstanding. The compute method
would only be of value if it can be an easy addition.
-O
aving.
Patrick
-Original Message-
From: Gilles Sadowski [mailto:gil...@harfang.homelinux.org]
Sent: Thursday, November 15, 2012 6:32 AM
To: dev@commons.apache.org
Subject: Re: [Math] MATH-894
Hi Patrick.
On Mon, Nov 12, 2012 at 02:38:07PM -0500, Patrick Meyer wrote:
> Please keep ResizeableDoub
Please keep ResizeableDoubleArray as its own class. I find it very useful
for more than descriptive statistics. I do like the idea of adding an apply
method to it.
Patrick
-Original Message-
From: Phil Steitz [mailto:phil.ste...@gmail.com]
Sent: Monday, November 12, 2012 1:23 PM
To: Comm
-0400, Patrick Meyer wrote:
> I vote for simplicity. Current practice in the social sciences is to
> fit multiple models, each with a different number of components, and
> use fit statistics to choose the best model.
So... Do you vote for the current proposal (as in the latest attachment on
I vote for simplicity. Current practice in the social sciences is to fit
multiple models, each with a different number of components, and use fit
statistics to choose the best model.
There are some additional features I would like to see added and I have the
code to contribute if it is not curren
Looks great, thanks!
-Original Message-
From: Thomas Neidhart [mailto:thomas.neidh...@gmail.com]
Sent: Wednesday, February 15, 2012 2:28 PM
To: dev@commons.apache.org
Subject: Re: [Math] Toward releasing 3.0 ?
On 02/15/2012 02:41 PM, Patrick Meyer wrote:
> OK, I submited a patch t
7:46 AM
To: dev@commons.apache.org
Subject: Re: [Math] Toward releasing 3.0 ?
On Tue, Feb 14, 2012 at 01:12:50PM +0100, Thomas Neidhart wrote:
> On 02/14/2012 12:50 PM, Patrick Meyer wrote:
> > I can document the StorelessCovariance addition. What is the best
> > way to add document
I can document the StorelessCovariance addition. What is the best way to add
documentation? Do I just add comments to the file and create a patch?
-Original Message-
From: Thomas Neidhart [mailto:thomas.neidh...@gmail.com]
Sent: Monday, February 13, 2012 9:21 AM
To: dev@commons.apache.or
Ha ha... I was really hoping someone else would do all the hard work and
write the MVN distribution function for me.
On 9/3/2011 1:53 PM, Phil Steitz wrote:
On 9/3/11 10:37 AM, Patrick Meyer wrote:
No, I have written very few tests. Until I recently discovered
jUnit, I was using a very crude
Sep 3, 2011 at 10:48 AM, Patrick Meyer wrote:
Sounds good. Separating the general purpose stats from the psychometric
specific stats seems like a natural way to distinguish the two libraries.
I'll send a link to the source code soon. Hopefully, you will see the good
ideas in the code.
On 9
/11 7:19 AM, Patrick Meyer wrote:
Yes, the math code is separate from the GUI and database for the
most part. I'd be happy to share the code and documentation, but I
need a few days to add it to a repository and get it online.
There are parts of my library that can be transferred to math wit
Yes, the math code is separate from the GUI and database for the most
part. I'd be happy to share the code and documentation, but I need a few
days to add it to a repository and get it online.
There are parts of my library that can be transferred to math with very
few changes but other parts t
Hi All,
I have been developing an pure Java application that does a variety of
psychometric methods. I use the commons math library as much as I can
but I've also had to develop my own library. I'd like to combine the two
libraries by donating as much of my code to commons math as I can. My
l
is an excellent community edition and
Apache committers can get a full version.
On Wed, Aug 17, 2011 at 8:09 PM, Patrick Meyer wrote:
OK, after fidgeting with NetBeans for too long without results, I went with
Phil's suggestion and just used subversion at the command prompt. It was
much e
OK, after fidgeting with NetBeans for too long without results, I went
with Phil's suggestion and just used subversion at the command prompt.
It was much easier than trying to configure NetBeans.
I uploaded the patch this evening. It includes two new classes
StorelessCovariance.java and Storel
I am workin on the StorelessCovariance per jira MATH-449. However, I'm
having a hard time using subversion via Netbeans. I have successfully
created the new classes and a JUnit test. However, when I run the test I
get the following message,
"caused an ERORR: Absent Code attribute in method tha
Thanks for the information Luc. I didn't know those existed. I'm happy
to keep the discussion at the implementation levels.
On 8/12/2011 6:23 AM, Luc Maisonobe wrote:
Le 12/08/2011 00:30, Patrick Meyer a écrit :
I like the idea of adding this feature. What about an abstract
I like the idea of adding this feature. What about an abstract class
that implements DifferentiableMultivariateRealFunction and provides the
method for partialDerivative (). People could then override the
partialDerivative method if they have an analytic derivative.
Here's some code that I'm h
Thanks. I think my problem may be an IDE issue. In Eclipse, I had no luck
using New > Java Class, but I was able to use New > File. Is that normal?
Sorry for the simple questions, but I really appreciate your help.
On Thu, Dec 9, 2010 at 1:33 PM, Gilles Sadowski <
gil...@harfang.homelinux.org> wro
Excuse my typo, I meant to say if it is possible to add new classes via
SUBVERSION, not substance. As I am new to subversion it seems that only
patches for existing classes are possible.
On Thu, Dec 9, 2010 at 11:45 AM, Patrick Meyer wrote:
> Is it possible to add new classes via substa
Is it possible to add new classes via substance patches? I have a storeless
covariance class and other classes I would like to contribute.
Thanks,
Patrick
Ted and Sebb,
Thanks for all of the help! I look forward to submitting more contributions.
Thanks,
Patrick
>
> -
> To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org
> For additional commands, e-mail: dev-h...@commons
OK, I generated the patch file using Eclipse and it seems to have the
information you described. I'm not sure if the revision part is correct
though. The latest patch is named MATH-448.patch and it is now attached to
the JIRA issue, https://issues.apache.org/jira/browse/MATH-448. I hope this
latest
ight eventually.)
On Mon, Dec 6, 2010 at 11:55 AM, Ted Dunning wrote:
> How did you create this diff?
>
> The normal way is to use svn diff in the project root directory.
>
> On Mon, Dec 6, 2010 at 8:29 AM, Patrick Meyer wrote:
>
> > OK, I attached a diff file to,
> &g
l a volunteer effort. Go ahead and volunteer!
>
> On Mon, Dec 6, 2010 at 6:07 AM, Patrick Meyer wrote:
>
> > I have a small feature request for the org.apache.commons.math.stat
> > Frequency class. It is often useful to know the unique number of elements
> > in
>
There are now accurate algorithms for an incremental, storeless covariance
that are extentions of West's algorithm for storeless variance. I submitted
the algorithm and technical paper on its derivation in JIRA,
https://issues.apache.org/jira/browse/MATH-449. It would be nice to have
this added to
I have a small feature request for the org.apache.commons.math.stat
Frequency class. It is often useful to know the unique number of elements in
a frequency table. Would you add this feature? I submitted an issue with
JIRA with the code needed to make this happen,
https://issues.apache.org/jira/bro
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