R help - Jan 2012 - Bivariate Partial Dependence Plots in Random Forests

Hello,

 

I was wondering if anyone knew of an R function/R code to plot bivariate
(3 dimensional) partial dependence plots in random forests (randomForest
package). 

 

It is apparently possible using the rgl package
(http://esapubs.org/archive/ecol/E088/173/appendix-C.htm) or there may
be a more direct function such as the pairplot() in MART (multiple
additive regression trees)?

 

Many thanks,

 

Lucie

 

My Computer:

HP Z400 Workstation,

16.0 GB, Windows 7 Professional, Intel(R) Xeon(R) CPU, W365 3.20 GHz
3.19 GHz

64bit

 

My R version:

R version 2.14.1 (2011-12-22) 64 bit



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Principal Office England. Company Number RC000749
Registered address: 
Regent's Park, London, England NW1 4RY
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_________________________________________________________________________
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The reason that it's not implemented is because of computational cost.  Some
users had done it on their own using the same idea.  It's just that it takes
too much memory for even moderately sized data.  It can be done much more
efficiently in MART because computational shortcuts were used.

Best,
Andy
> -----Original Message-----
> From: r-help-bounces at r-project.org 
> [mailto:r-help-bounces at r-project.org] On Behalf Of Lucie Bland
> Sent: Friday, January 27, 2012 5:01 AM
> To: r-help at r-project.org
> Subject: [R] Bivariate Partial Dependence Plots in Random Forests
> 
> Hello,
> 
>  
> 
> I was wondering if anyone knew of an R function/R code to 
> plot bivariate
> (3 dimensional) partial dependence plots in random forests 
> (randomForest
> package). 
> 
>  
> 
> It is apparently possible using the rgl package
> (http://esapubs.org/archive/ecol/E088/173/appendix-C.htm) or there may
> be a more direct function such as the pairplot() in MART (multiple
> additive regression trees)?
> 
>  
> 
> Many thanks,
> 
>  
> 
> Lucie
> 
>  
> 
> My Computer:
> 
> HP Z400 Workstation,
> 
> 16.0 GB, Windows 7 Professional, Intel(R) Xeon(R) CPU, W365 3.20 GHz
> 3.19 GHz
> 
> 64bit
> 
>  
> 
> My R version:
> 
> R version 2.14.1 (2011-12-22) 64 bit
> 
> 
> 
> The Zoological Society of London is incorporated by Royal Charter
> Principal Office England. Company Number RC000749
> Registered address: 
> Regent's Park, London, England NW1 4RY
> Registered Charity in England and Wales no. 208728 
> 
> ______________________________________________________________
> ___________
> This e-mail has been sent in confidence to the named=2...{{dropped:21}}