topic Re: PLS Modeling with mixture components in Discussions

PLS Modeling with mixture components

frankderuyck — Tue, 16 Dec 2025 10:53:37 GMT

I made a PLS on a 6 component mixture; as Design Roles I specified all components as mixture;

However, when maximizing desirability to find optimal composition, the profiler does not treat the factors as mixture components cfr. below;

How to switch the PLS factors to mixture components?

Will this also the case when I use ML predictive modeling?

Re: PLS Modeling with mixture components

Victor_G — Tue, 16 Dec 2025 16:13:55 GMT

Hi Franck,

See my answer on your other post: https://community.jmp.com/t5/Discussions/SVEM-ADD-IN-FOR-SUPPORT-VECTOR-MACHINE/m-p/919885/highlight/true#M107889

Maybe the "Mixture" column property is missing for these mixture factors, so JMP doesn't know to which quantity/value these factors should sum up to ? This would explain why you can get mixture factors sum value > 1.

Re: PLS Modeling with mixture components

Jed_Campbell — Tue, 16 Dec 2025 16:17:49 GMT

Can you verify that your mixture columns have a Mixture column property? The mixture constraint is reflected in the profiler when using PLS (and Bootstrap Forest, per your ML question) in the Donev Mixture Data sample data file, which has mixture constraints set up as column properties.

Re: PLS Modeling with mixture components

frankderuyck — Thu, 18 Dec 2025 06:34:18 GMT

Hi Jed & Victor, indeed this is missing, thanks a lot!