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Re: Correlation Between Regressors

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June 05, 2012 10:15AM
Andrew,

There are a few approaches to assessing the multicollinearity among explanatory variables in a model. One of them is the condition number of the design matrix that is used in 3dDeconvolve to alert the user about its severity. Some people do view that a correlation higher than 0.4 between two regressors indicate a potential multicollinearity issue, but that's not necessarily always the case. See more discussion about this and a couple of other multicollinearity assessment methods here:

[en.wikipedia.org]

Gang Chen
[afni.nimh.nih.gov]
Subject Author Posted

Correlation Between Regressors

Andrew Jahn June 04, 2012 07:06PM

Re: Correlation Between Regressors

Gang June 05, 2012 10:15AM

Re: Correlation Between Regressors

rick reynolds June 05, 2012 11:25AM

Re: Correlation Between Regressors

Andrew Jahn June 05, 2012 04:05PM

Re: Correlation Between Regressors

rick reynolds June 05, 2012 08:36PM



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