[R] FW: Can I estimate strength and correlation of Random Forest in R package " randomForest"?

[Liaw, Andy]

Didn't realize the message was cc'ed to R-help.  Here's my reply... 

________________________________

From: Liaw, Andy 
Sent: Thursday, June 18, 2009 11:35 AM
To: 'Li GUO'
Subject: RE: Can I estimate strength and correlation of Random Forest in
R package " randomForest"?


The strength and correlation among trees in a random forest are based on
the predictions of the individual trees.  You can get that from the
predict() method for a randomForest object with the predict.all option.
>From there you can compute the strengths and correlations on your own.

Andy


________________________________

	From: Li GUO [mailto:guoli84 at yahoo.com] 
	Sent: Thursday, June 18, 2009 11:03 AM
	To: Liaw, Andy
	Cc: r-help at r-project.org
	Subject: Can I estimate strength and correlation of Random
Forest in R package " randomForest"?
	
	
	Hello!
	I want to estimate strength and correlation of RandomForest, but
in package "randomForest" there is not an interface to get it. I think I
must to change the source code
<http://mail.yimg.com/a/i/mesg/tsmileys2/31.gif> . Is there any advise?
	Thanks,
	
	Li
	
	
	


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