R help - Mar 2009 - Pruning trees in a Random Forest

Hi all!

The randomForest in R enables us to prune the trees using the nodesize
feature where we can stop splitting a node if it contains less than the
specified no.of of records/entities at that node.

However is there a way to stop the tree growing after a specified number of
levels. To be more clear on what I mean by a level. Level 0 is the parent
node, Level 1 has 2 daughter nodes, Level 2 has 4 daughter nodes, Level 3
has 8 daughter nodes etc.

Thanks in advance!

Anirudh Kondaveeti
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The way the trees are structured in randomForest, there's no way to stop
tree growth by depth (what you called level).

(If anyone has ideas, I'm all ears.)

Andy 

From: Anirudh Kondaveeti
> 
> Hi all!
> 
> The randomForest in R enables us to prune the trees using the nodesize
> feature where we can stop splitting a node if it contains 
> less than the
> specified no.of of records/entities at that node.
> 
> However is there a way to stop the tree growing after a 
> specified number of
> levels. To be more clear on what I mean by a level. Level 0 
> is the parent
> node, Level 1 has 2 daughter nodes, Level 2 has 4 daughter 
> nodes, Level 3
> has 8 daughter nodes etc.
> 
> Thanks in advance!
> 
> Anirudh Kondaveeti
> ----------------------------
> 
> 	[[alternative HTML version deleted]]
> 
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