Singular Matrix Problem - MGA

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PLS Junior User
Posts: 1
Joined: Mon Oct 08, 2018 8:40 am
Real name and title: M. Sc. Marius Michels

Singular Matrix Problem - MGA

Post by mmichel3 » Mon Oct 08, 2018 8:46 am

Dear SmartPLSer,

I am wondering if anybody can help me out.
I am running a PLS Model (Technology Acceptance Model for App use) which should explain me the actual usage behaviour in terms of frequency.
Frequency was coded with 0 = Never, 1 = Less than once a week, 2 = Once a week...and so on.

However, I would like to do a Multigroup-Analysis between User and Non-User.
I've already read in this forum that dividing my group in User and Non-User is not possible as the variance in the frequency of the non-user is obviously 1 because the frequency of non-user have all the value of 0.

Does anybody has an idea how to solve this?

Thank you very much.

SmartPLS Developer
Posts: 842
Joined: Tue Mar 28, 2006 11:09 am
Real name and title: Dr. Jan-Michael Becker

Re: Singular Matrix Problem - MGA

Post by jmbecker » Fri Oct 12, 2018 8:49 am

The only possible option is to exclude the variable from your group model. This should not be a problem because you already control for the variable by grouping your data.
Dr. Jan-Michael Becker, University of Cologne, SmartPLS Developer
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