[R] how to generate a function from a linear model

[Liaw, Andy]

predict() can do that for you without giving you the explicit form of the
prediction function.  I believe Prof. Harrell has facilities in his
Design/Hmisc packages for producing functions from fitted models.

Andy

> From: Tony Han Bao
> 
> Hi All,
> 
> I am trying to generate a function from a linear model. I think there 
> should be build-in function that perform this action but I've had no 
> luck finding it.
> 
> For example, I have a model created using lm().
> 
> 	model <- lm(sat.d~1+sat.n+I(sat.n^2))
> 
> What I would like to have is a function (similar to the one generated 
> by splinefun()) so that I can use it on different data-sets.
> 
> Thanks in advance for the help.
> 
> Tony Han Bao
> tonybao at mac.com
> 
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