turn on suggestions

Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

Showing results for

- JMP User Community
- :
- Discussions
- :
- Discussions
- :
- What does ill-conditioned regression problem alert...

Topic Options

- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content

Feb 22, 2016 5:09 AM
(1815 views)

I'm using Fit Model > Standard Least Squares, Effect Screening using Macros > Factor to Degree (2). and get the following alert:

Any help to understand and resolve would be greatly appreciated.

Solved! Go to Solution.

1 ACCEPTED SOLUTION

Accepted Solutions

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content

Feb 22, 2016 6:34 AM
(1710 views)

Solution

The attached (encrypted) script is taken from the book I helped to write: https://www.sas.com/store/books/categories/usage-and-reference/discovering-partial-least-squares-wit... and it shows the effect. As the correlation between X1 and X2 near +1 (or -1), the problem becomes ill-conditioned. So I assume the data you have did not come from a designed experiment, and that you will need to drop some variables if you want to use MLR.

1 REPLY

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content

Feb 22, 2016 6:34 AM
(1711 views)