Re: [R] Cforest and Random Forest memory use

2010-06-18 Thread Raubertas, Richard
below. Rich > -Original Message- > From: Max Kuhn [mailto:mxk...@gmail.com] > Sent: Friday, June 18, 2010 1:35 PM > To: Bert Gunter > Cc: Raubertas, Richard; Matthew OKane; r-help@r-project.org > Subject: Re: [R] Cforest and Random Forest memory use > > Rich's calc

Re: [R] Cforest and Random Forest memory use

2010-06-18 Thread Max Kuhn
bertas, Richard > Sent: Thursday, June 17, 2010 4:15 PM > To: Max Kuhn; Matthew OKane > Cc: r-help@r-project.org > Subject: Re: [R] Cforest and Random Forest memory use > > > >> -Original Message- >> From: r-help-boun...@r-project.org >> [mailto:r-he

Re: [R] Cforest and Random Forest memory use

2010-06-18 Thread Bert Gunter
Gunter Genentech Nonclinical Statistics -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Raubertas, Richard Sent: Thursday, June 17, 2010 4:15 PM To: Max Kuhn; Matthew OKane Cc: r-help@r-project.org Subject: Re: [R] Cforest and Random Fores

Re: [R] Cforest and Random Forest memory use

2010-06-17 Thread Raubertas, Richard
> -Original Message- > From: r-help-boun...@r-project.org > [mailto:r-help-boun...@r-project.org] On Behalf Of Max Kuhn > Sent: Monday, June 14, 2010 10:19 AM > To: Matthew OKane > Cc: r-help@r-project.org > Subject: Re: [R] Cforest and Random Forest memory use

Re: [R] Cforest and Random Forest memory use

2010-06-14 Thread Max Kuhn
The first thing that I would recommend is to avoid the "formula interface" to models. The internals that R uses to create matrices form a formula+data set are not efficient. If you had a large number of variables, I would have automatically pointed to that as a source of issues. cforest and ctree o

Re: [R] Cforest and Random Forest memory use

2010-06-14 Thread Matthew OKane
Answers added below. Thanks again, Matt On 11 June 2010 14:28, Max Kuhn wrote: > Also, you have not said: > > - your OS: Windows Server 2003 64-bit > - your version of R: 2.11.1 64-bit > - your version of party: 0.9-9995 > > - your code: test.cf <-(formula=badflag~.,data = > example,cont

Re: [R] Cforest and Random Forest memory use

2010-06-11 Thread Max Kuhn
Also, you have not said: - your OS - your version of R - your version of party - your code - what "Large data set" means - what "very large model objects" means So... how is anyone suppose to help you? Max __ R-help@r-project.org mailing list ht

Re: [R] Cforest and Random Forest memory use

2010-06-11 Thread Peter Ehlers
You say you're on a 64-bit box, but are you running 64-bit R? -Peter Ehlers On 2010-06-10 4:36, Matthew OKane wrote: Hi all, I'm having great trouble working with the Cforest (from the party package) and Random forest functions. Large data set seem to create very large model objects which m

[R] Cforest and Random Forest memory use

2010-06-10 Thread Matthew OKane
Hi all, I'm having great trouble working with the Cforest (from the party package) and Random forest functions. Large data set seem to create very large model objects which means I cannot work with the number of observations I need to, despite running on a large 8GB 64-bit box. I would like the