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Singular Matrix Problem - MGA

Posted: Mon Oct 08, 2018 8:46 am
by mmichel3
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.

Re: Singular Matrix Problem - MGA

Posted: Fri Oct 12, 2018 8:49 am
by jmbecker
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.