On Fri, 14 Feb 2003 08:31:58 +0100, "Uwe Ligges" <[EMAIL PROTECTED]> said: > [EMAIL PROTECTED] wrote: <...> > > So my question is, how do I export an lm.object in some form that I can > > then apply to prediction in C, SQL, or some other language? All I'm > > looking for is some well-structured textual or data frame output that I > > can then manipulate with appropriate tools, whether it be S itself, or > > something like Perl. <...>
> See ?dump Thanks for the suggestion. After my last post I tried switching from SPLUS to R and discovered the useful xlevels attribute, which when output with expression(), combined with the coefficients attribute, gives me the information I need. dump() also provides those things, although it has a lot of other stuff not needed to build the prediction function. I'll start coding something using this, but it won't be ideal. The two problems are: - The variable name / level name are still concatenated with no delimiter in the coefficients, so it's possible there will be ambiguous names - It feels rather clunky to be relying on these attributes when I feel like I should be adding methods directly to the class somehow... In SPLUS I came across a useful attribute 'assign', which has a mapping of term names to variables - the same attribute in R doesn't appear to provide this information. Is this available somewhere? What approaches are others using to apply their models to data sets where S is not available? Has anyone written any convertors of models to other languages? Is it possible to compile an expression or model into a DLL or COM object and access it that way? I'm aware of the SOAP interface, but that doesn't really suit our needs in this case. TIA, Jeremy ______________________________________________ [EMAIL PROTECTED] mailing list http://www.stat.math.ethz.ch/mailman/listinfo/r-help
