Thanks. But in UNIX side, I got the same error

In getDependencies(pkgs, dependencies, available, lib) :
  package â€˜carâ€™ is not available

HXD

From: Jorge I Velez [mailto:jorgeivanvelez@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

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