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Jun 11, 2020 at 14:32 history edited CommunityBot
Commonmark migration
Aug 13, 2010 at 2:24 comment added Jeromy Anglim Great point about the importance of causal mechanisms.
Aug 13, 2010 at 1:52 vote accept Jeromy Anglim
Aug 12, 2010 at 17:31 history edited ars CC BY-SA 2.5
added 2117 characters in body; deleted 2 characters in body
Aug 12, 2010 at 7:22 history edited ars CC BY-SA 2.5
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Aug 12, 2010 at 7:19 comment added ars Sorry, that's a botched one line explanation written in haste. Fixed now, thanks.
Aug 12, 2010 at 7:11 comment added Jeromy Anglim Thanks for the suggestion to explore ridge or PCA regression. Just a side point regarding your comment "if your variables are positively correlated, then the coefficients will be negatively correlated leading to sign reversal.": positively correlated predictors do not typically lead to sign-reversal.
Aug 12, 2010 at 6:39 history answered ars CC BY-SA 2.5