DM: data preprocessing and statistical analysis tools

[Jeff Yuan]

Hi datamine list ppl,

My name is Jeff Yuan.  I work for the Boston company Neurotec Intl. 
Corp., 
which does data mining, forecasting, intelligent systems, and WEB 
stuff.

May I ask what tools you use for data preprocessing and statistical 
analysis?
I am looking for something that can let me message data, perform 
various 
statistical operations, and visualize the results (prior to 
modeling).  The tool 
should be able to directly operate on relational database 
tables/fields 
without having to importing/exporting to native formats, and able to 
operate on
very large data sets.  If you know of such an animal or are currently 
using one 
(non-proprietary), please tell me your opinion.  You can email me at 
jy@neurotec.com.  Thanks in advance.


Jeff