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From "Patrick Meyer" <>
Subject RE: [math] Examples
Date Thu, 29 Nov 2012 03:38:08 GMT
Hi Phil,

I use various parts of Commons Math (CM) for a program I created for
psychometrics called jMetrik, 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.


-----Original Message-----
From: Phil Steitz [] 
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.



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