[R] Variance Inflation factor

[R. Michael Weylandt <michael.weylandt@gmail.com>]

Which Linux are you running?

For distros with package managers, that's usually all you need. Also Check up on the R-SIG-Debian (including Ubuntu) or R-SIG-Fedora as appropriate if you need more help. 

Michael

On Jul 11, 2012, at 6:26 PM, Hui Du <Hui.Du at dataventures.com> wrote:

> Thanks, all. I will upgrade my R in linux but I suspect the root cause is some set up problem although I don't know how to trace it yet. I am not that familiar with R in Linux. If somebody could give me a clue how to diagnose this kind of problem, that will be great.
> 
> 
> 
> HXD
> -----Original Message-----
> From: R. Michael Weylandt [mailto:michael.weylandt at gmail.com] 
> Sent: Wednesday, July 11, 2012 4:04 PM
> To: Hui Du
> Cc: Jorge I Velez; R-help
> Subject: Re: [R] Variance Inflation factor
> 
> You're rather out of date with your version of R -- if you want to use
> the CRAN binaries provided by install.packages(), you usually have to
> be at most one minor rev behind.
> 
> Try install.packages("car", type = "source")
> 
> But even better -- update to a poppin-fresh R 2.15.1: you get
> parallelization, a byte-code-compiler, and all sorts of other goodies.
> 
> Best,
> Michael
> 
> On Wed, Jul 11, 2012 at 5:34 PM, Hui Du <Hui.Du at dataventures.com> wrote:
>> Thank you for your consideration.
>> 
>> 
>>> sessionInfo()
>> R version 2.11.1 (2010-05-31)
>> i686-pc-linux-gnu
>> 
>> locale:
>> [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
>> [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
>> [5] LC_MONETARY=C              LC_MESSAGES=en_US.UTF-8
>> [7] LC_PAPER=en_US.UTF-8       LC_NAME=C
>> [9] LC_ADDRESS=C               LC_TELEPHONE=C
>> [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
>> 
>> attached base packages:
>> [1] stats     graphics  grDevices utils     datasets  methods   base
>> 
>> HXD
>> 
>> From: Jorge I Velez [mailto:jorgeivanvelez at gmail.com]
>> Sent: Wednesday, July 11, 2012 3:31 PM
>> To: Hui Du
>> Cc: R-help
>> Subject: Re: [R] Variance Inflation factor
>> 
>> Could you please include your sessionInfo()  ?
>> 
>> Thank you,
>> Jorge.-
>> 
>> On Wed, Jul 11, 2012 at 6:27 PM, Hui Du <Hui.Du at dataventures.com<mailto:Hui.Du at dataventures.com>> wrote:
>> Thanks. But in UNIX side, I got the same error
>> 
>> In getDependencies(pkgs, dependencies, available, lib) :
>>  package ‘car’ is not available
>> 
>> HXD
>> 
>> From: Jorge I Velez [mailto:jorgeivanvelez at gmail.com<mailto:jorgeivanvelez at gmail.com>]
>> Sent: Wednesday, July 11, 2012 3:19 PM
>> To: Hui Du
>> Cc: R-help
>> Subject: Re: [R] Variance Inflation factor
>> 
>> See the examples at
>> 
>> # install.pacages('car')
>> require(car)
>> ?vif
>> 
>> HTH,
>> Jorge.-
>> 
>> On Wed, Jul 11, 2012 at 6:10 PM, Hui Du <> wrote:
>> Hi All,
>> 
>> 
>> I need to calculate VIF (variance inflation factor) for my linear regression model. I found there was a function named  vif in 'HH' package. I have two questions:
>> 
>> 
>> 1)      I was able to install that package in my R under windows. But while trying to install that package in UNIX, I got error:
>> 
>> Package HH is not available.
>> 
>>            Does somebody know why?
>> 
>> 
>> 2)      Does somebody know the other way to calculate vif in R?
>> 
>> 
>> Many thanks.
>> HXD
>> 
>>        [[alternative HTML version deleted]]
>> 
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>> 
>>        [[alternative HTML version deleted]]
>> 
>> 
>> ______________________________________________
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>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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>>