- Mark as New
- Bookmark
- Subscribe
- Mute
- RSS Feed
- Permalink
- Report Inappropriate Content
Posted 02-10-2021 08:46 PM
(1249 views)
Hi Folks,
I am running a logistic model where my outcome is 0/1 and independent variables are either 0/1 or quartiles. The age variable (20 to 54) is highly collinear with education and race (VIF is 12). However, I cannot drop age and I tried recategorizing it, but the VIF was still above 10. So, I started reading that it can be taken care of by doing a ridge or lasso regression. I have searched extensively, but I did not get any information on how to implement it in logistic regression along with interpretation.
Thanks
4 REPLIES 4
- Mark as New
- Bookmark
- Subscribe
- Mute
- RSS Feed
- Permalink
- Report Inappropriate Content
Example 3 here: https://support.sas.com/kb/60/240.html
- Mark as New
- Bookmark
- Subscribe
- Mute
- RSS Feed
- Permalink
- Report Inappropriate Content
I did this, but the VIF was still around 12. I categorized age into smaller groups, but both had vid above 10.
- Mark as New
- Bookmark
- Subscribe
- Mute
- RSS Feed
- Permalink
- Report Inappropriate Content
What exactly do you mean when you say you "did this"? What is "this"?
Because nothing in the link above is about changing the categories into smaller groups.
Because nothing in the link above is about changing the categories into smaller groups.
- Mark as New
- Bookmark
- Subscribe
- Mute
- RSS Feed
- Permalink
- Report Inappropriate Content
I am sorry, I meant this: