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
- :
- How to extract latent factors in PLSR model

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

Jul 9, 2016 10:35 PM
(1688 views)

Hi everyone,

I was going through the basic example of baltic .jmp (spectral data) given on the link "Example of Partial Least Squares".

after selecting number of factors in jmp and analyse it, several reports are generated. To my understanding NUMBER OF LATENT FACTORS are related to those variables (out of 27 in this example) which explain most of variance. If that is true then, how to identify positions/names of those variables (from v1 to v27 in this case).

Regards,

Khan.

3 REPLIES

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

Jul 10, 2016 3:39 AM
(1603 views)

Given that PLS is a multivariate approach that relies ultimately on **correlations** between variables, there is some debate about how, or even if, it should be used for variable selection (pricking an 'active subset' of v1 to v27 in this case). In PLS each X variable plays a dual role (for both dimensionality reduction and regression), and the 'VIP vs Coefficients' plots show this. So if you do want to try what you suggest, this might be a reasonable place to start.

There are many more details here, or in other books on PLS.

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

Jul 11, 2016 7:18 AM
(1603 views)

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

Jul 12, 2016 9:17 AM
(1603 views)