[math] Examples

[Phil Steitz <ph...@gmail.com>]

Apologies for the cross-post.  Please respond to just the dev list.

I am going to do a talk on Commons Math at Apachecon US in Portland
next February.  One of the things I want to do in the talk is to
present some examples of practical use of the library.  I would love
to get some examples from the community that I could use, with
acknowledgement, under the ASL.

Ideal examples can be described simply (i.e., not too much arcane
domain-specific theory needed to understand the practical
application) and use [math] APIs simply and directly.  For example,
one of my own applications is a discrete event simulator that uses
[math] APIs to generate event inter-arrival times and to accumulate
latency statistics.  Part of the goal of the talk in general and the
examples in particular is to show people how to find the things they
need to solve problems using [math], so some information on how you
found your way to the needed goodies (or helped us improve the
library so the goodies you needed were there) will also be helpful.

Thanks in advance for any contributions.  We can discuss ideas on
the dev list, or you can send me private mail.  I will take code and
descriptions in any form.

Thanks!

Phil

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Re: [math] Examples

[Phil Steitz <ph...@gmail.com>]

On 11/28/12 7:38 PM, Patrick Meyer wrote:
> 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
> base. I'm currently working on version 3, which involved a full switch to CM
> 3.0. Feel free to use the program description on the homepage of the
> website. The code is pretty extensive, but I can provide specific examples
> of how I use CM. I first found CM several years ago when I was searching for
> source code for numerical optimization. I'm happy to help out. Let me know
> if you would like more information.

Thanks, Patrick!  Yes, it would be great if you could provide some
examples.  What would be doubly cool is if there are some showing
either how you helped us make needed improvements and / or still
existing deficiencies you are helping address (e.g. missing data ;)

Thanks again.

Phil
>
> Patrick
>
>
> -----Original Message-----
> From: Phil Steitz [mailto:phil.steitz@gmail.com] 
> Sent: Wednesday, November 28, 2012 8:01 PM
> To: Commons Developers List; Commons Users List
> Subject: [math] Examples
>
> Apologies for the cross-post.  Please respond to just the dev list.
>
> I am going to do a talk on Commons Math at Apachecon US in Portland next
> February.  One of the things I want to do in the talk is to present some
> examples of practical use of the library.  I would love to get some examples
> from the community that I could use, with acknowledgement, under the ASL.
>
> Ideal examples can be described simply (i.e., not too much arcane
> domain-specific theory needed to understand the practical
> application) and use [math] APIs simply and directly.  For example, one of
> my own applications is a discrete event simulator that uses [math] APIs to
> generate event inter-arrival times and to accumulate latency statistics.
> Part of the goal of the talk in general and the examples in particular is to
> show people how to find the things they need to solve problems using [math],
> so some information on how you found your way to the needed goodies (or
> helped us improve the library so the goodies you needed were there) will
> also be helpful.
>
> Thanks in advance for any contributions.  We can discuss ideas on the dev
> list, or you can send me private mail.  I will take code and descriptions in
> any form.
>
> Thanks!
>
> Phil
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@commons.apache.org
> For additional commands, e-mail: dev-help@commons.apache.org
>
>
>
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> To unsubscribe, e-mail: dev-unsubscribe@commons.apache.org
> For additional commands, e-mail: dev-help@commons.apache.org
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>


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RE: [math] Examples

[Patrick Meyer <me...@gmail.com>]

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
base. I'm currently working on version 3, which involved a full switch to CM
3.0. Feel free to use the program description on the homepage of the
website. The code is pretty extensive, but I can provide specific examples
of how I use CM. I first found CM several years ago when I was searching for
source code for numerical optimization. I'm happy to help out. Let me know
if you would like more information.

Patrick


-----Original Message-----
From: Phil Steitz [mailto:phil.steitz@gmail.com] 
Sent: Wednesday, November 28, 2012 8:01 PM
To: Commons Developers List; Commons Users List
Subject: [math] Examples

Apologies for the cross-post.  Please respond to just the dev list.

I am going to do a talk on Commons Math at Apachecon US in Portland next
February.  One of the things I want to do in the talk is to present some
examples of practical use of the library.  I would love to get some examples
from the community that I could use, with acknowledgement, under the ASL.

Ideal examples can be described simply (i.e., not too much arcane
domain-specific theory needed to understand the practical
application) and use [math] APIs simply and directly.  For example, one of
my own applications is a discrete event simulator that uses [math] APIs to
generate event inter-arrival times and to accumulate latency statistics.
Part of the goal of the talk in general and the examples in particular is to
show people how to find the things they need to solve problems using [math],
so some information on how you found your way to the needed goodies (or
helped us improve the library so the goodies you needed were there) will
also be helpful.

Thanks in advance for any contributions.  We can discuss ideas on the dev
list, or you can send me private mail.  I will take code and descriptions in
any form.

Thanks!

Phil

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