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From |
Richard Williams <Richard.A.Williams.5@nd.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Negative Variance Inflation Factor-collin command |

Date |
Tue, 22 Feb 2005 13:42:53 -0500 |

At 06:53 PM 2/22/2005 +0100, you wrote:

Just to be clear, -vif- is a post-estimation command that only works after you have run -regress-. I don't think there is any substantive reason it wouldn't be appropriate after several other commands (e.g. -logit-), it is just a matter of how the -vif- program is written. -collin- uses matrix commands to do its work; it doesn't run any regressions. -collin- is not a post-estimation command, i.e. you don't have to run some other command first.variables on the others) I think you are right that the original command used in the regression does not change the results, because the accessory regressions should still be done by Stata through the reg command. Best Regards, Diego

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**References**:**Re: st: Negative Variance Inflation Factor-collin command***From:*"Diego Rei" <g2inst@ilo.org>

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