[R] random Forests

[Liaw, Andy]

1) See the help pages for save() and load().  We do this all the time. 

2) Prediction (or what you call scoring) given the matrix structure is
quite simple.  Take a look at the underlying C source code.  You can
write that in any language you want without much problem.

Andy

From: David Montgomery
> 
> Hi,
>  
> I am new to R and have a specific question about the 
> randomForest package and the saving of trees and scoring.
>  
> 1) I am looking to save the trees and score at a later time.  
> Is there a way to load the saved trees and use the predict 
> function?  Can objects be saved and loaded i.e. the 
> randomForest function call?  I dont want to have to rerun 
> trees.  Hopefully this applies to any stat type procedure 
> that requires scoring.
>  
> 2) Has anybody written any code in any other language that 
> optimizes scoring using the format that the trees are saved 
> in?  Ideally I would like to do real time scoring outside of 
> R and hoping that someone has code in python or c++developed 
> around the matrix format of the tree structure.
>  
> Thanks,
>  
> David
>  
>  
>  
>  
> 	[[alternative HTML version deleted]]
> 
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