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Date:         Fri, 21 Nov 2008 09:37:03 +0100
Reply-To:     Spousta Jan <JSpousta@CSAS.CZ>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Spousta Jan <JSpousta@CSAS.CZ>
Subject:      How to save Neural Network models as SQL / SPSS syntax
In-Reply-To:  A<4925DBC6.3090105@DrKendall.org>
Content-Type: text/plain; charset="iso-8859-2"

Hi all,

In SPSS 17, if I use a TREE command, I can save the resulting model in the form of SQL/SPSS program, for example:

TREE dependent BY independents ... /RULES NODES=TERMINAL SYNTAX=SQL TYPE=SCORING OUTFILE='C:\model.sql' ...

I need it in order to be able to scale fresh data later in a database on a main server. (I build models locally but deploy them in another software.)

The TREE is good; and also with "normal" regression models, I am able to re-construct the rules easily from the table of regression coeffs. The problem is with another types of models, for example the Radial Basis Function Network: The only thing I can do is

RBF dependent WITH independents ... /OUTFILE MODEL='C:\model.xml'...

But how to create SQL/SPSS rules from the *.xml file easily? Has somebody a solution, that is a program creating rules from xml model files? Does SPSS Inc. plan to enhance the functionality in future releases?

Best,

Jan

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