Re: A free Java data analysis tool?

2003-10-08 Thread J.Pietschmann
Jordi Salvat i Alabart wrote:

I was actually looking for something readily available we could 
partner with -- rather than develop it ourselves.
Hm, could you give a more detailed list of features you expect?
E.g.:
- input data structure and format (is it a file?)
- what statistics? fitting curves? clustering? calculating
 medians, standard derivations, quantiles, rankings? test
 for abnormal data?
- what nice graphs? lines, bars, different markers, candles, 3D?
- just plot or do user interaction: zoom in etc?
J.Pietschmann



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Re: A free Java data analysis tool?

2003-10-03 Thread J.Pietschmann
Jordi Salvat i Alabart wrote:
Hi.

JMeter could make good symbiosis with a free Java data analysis tool. 
I've been searching a little, but not been able to find anything good.

Most relevant requirements are being able to read a set of numeric timed 
data sets and generate nice graphs and simple statistics from them.

Any pointers?

Hm. Statistics: jakarta-commons-math. Nice graphs: jFreeGraph or
whatever else you can grab from sourceforge (there are at least
3 mature projects).
Get the plumbing and UI is still work though. :-/
J.Pietschmann

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RE: A free Java data analysis tool?

2003-10-03 Thread McDonald, Bruce
Well as long as you can generate the results from the tests as XML you can XSLT this 
to SVG and then render to images using batik.  Actually its trivial to implement this 
with Cocoon.  The only hard (but not complicated work) is the XSLT.

-Original Message-
From: J.Pietschmann [mailto:[EMAIL PROTECTED]
Sent: Friday, October 03, 2003 3:39 PM
To: Jakarta General List
Subject: Re: A free Java data analysis tool?


Jordi Salvat i Alabart wrote:
 Hi.
 
 JMeter could make good symbiosis with a free Java data analysis tool. 
 I've been searching a little, but not been able to find anything good.
 
 Most relevant requirements are being able to read a set of numeric timed 
 data sets and generate nice graphs and simple statistics from them.
 
 Any pointers?
 
Hm. Statistics: jakarta-commons-math. Nice graphs: jFreeGraph or
whatever else you can grab from sourceforge (there are at least
3 mature projects).
Get the plumbing and UI is still work though. :-/

J.Pietschmann


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To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]


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RE: A free Java data analysis tool?

2003-10-03 Thread Laurence Moroney
Shameless self-plug coming up--

Check out this article on Devx that will show you how to chart any data
set as long as it is in reasonably well-structured XML.

http://archive.devx.com/xml/articles/moroney/default.asp

and this one if you want to use a treemap

http://www.devx.com/xml/Article/17361

Laurence

-Original Message-
From: J.Pietschmann [mailto:[EMAIL PROTECTED] 
Sent: Friday, October 03, 2003 3:39 PM
To: Jakarta General List

Jordi Salvat i Alabart wrote:
 Hi.
 
 JMeter could make good symbiosis with a free Java data analysis tool. 
 I've been searching a little, but not been able to find anything good.
 
 Most relevant requirements are being able to read a set of numeric
timed 
 data sets and generate nice graphs and simple statistics from them.
 
 Any pointers?
 
Hm. Statistics: jakarta-commons-math. Nice graphs: jFreeGraph or
whatever else you can grab from sourceforge (there are at least
3 mature projects).
Get the plumbing and UI is still work though. :-/

J.Pietschmann


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