R help - Mar 2011 - How to extrapolate a model

I am using a multiple additive model (in the quantreg package) and I would
like to 'extract' the fitted model formulae

ie- for a straight line the formula would be y= 'a+b*c'
for my multiple model I would expect somthing more complex because the model
is not linear (its a bit like a GAM) but given I can plot the model using
# f<-fitted(model)
#lines(f)
there must be a formula that I can extract

Thank you for your time
Kitty

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I have no experience with this quantreg package and you did not include 
any code for us to reproduce your problem.

  But these models in R all work similar. Have a look at the model 
result object returned by the call of the fit (str(modelresults) ). I 
would expect that there is some formula component. Otherwise see what 
predict(modelresult), formulat(modelresults) fitted(modelresults) return 
( str() ) or have a look at the documentation of these functions.



HTH
Jannis


On 03/02/2011 04:40 PM, sadz a wrote:
> I am using a multiple additive model (in the quantreg package) and I would
> like to 'extract' the fitted model formulae
>
> ie- for a straight line the formula would be y= 'a+b*c'
> for my multiple model I would expect somthing more complex because the
model
> is not linear (its a bit like a GAM) but given I can plot the model using
> # f<-fitted(model)
> #lines(f)
> there must be a formula that I can extract
>
> Thank you for your time
> Kitty
>
> 	[[alternative HTML version deleted]]
>
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