## Getting N/A error while doing a consistent PLS Algorithm

bnaghshineh
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Real name and title: Bardia Naghshineh Manager

### Getting N/A error while doing a consistent PLS Algorithm

I am trying to do a "consistent PLS Algorithm" and the result is erroneous with N/A present in my model and matrix. Please take a look at the attached pictures and advise.
Attachments
error11.JPG (161.67 KiB) Viewed 2185 times
erroe1.JPG (130.43 KiB) Viewed 2185 times

cringle
SmartPLS Developer
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Real name and title: Prof. Dr. Christian M. Ringle
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### Re: Getting N/A error while doing a consistent PLS Algorithm

This kind of outcome occurs when the PLSc manipulation of PLS results entails extreme values. The reason are bad data and/or poor model fit.

Best
Christian

jmbecker
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### Re: Getting N/A error while doing a consistent PLS Algorithm

Dr. Jan-Michael Becker, University of Cologne, SmartPLS Developer
Researchgate: https://www.researchgate.net/profile/Ja ... v=hdr_xprf

dlaude
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Real name and title: Daniel Laude

### Re: Getting N/A error while doing a consistent PLS Algorithm

In this thread and the one that jmbecker has referenced (viewtopic.php?f=5&t=3531), this problem is attributed to the consistent PLS algorithm in reflective measurement.

I encounter this problem also with a formative construct and the standard PLS algorithm. Are the underlying reasons the same?

Thank you.

INFO.PNG (8.92 KiB) Viewed 159 times

jmbecker
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Real name and title: Dr. Jan-Michael Becker

### Re: Getting N/A error while doing a consistent PLS Algorithm

In such a model it is more likely the case that you have a severe multicollinearity problem or some other data issues that cause the problem.
Dr. Jan-Michael Becker, University of Cologne, SmartPLS Developer
Researchgate: https://www.researchgate.net/profile/Ja ... v=hdr_xprf

dlaude
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Real name and title: Daniel Laude

### Re: Getting N/A error while doing a consistent PLS Algorithm

Thank you, jmbecker. I don't think that it's a (multi)collinearity problem since all VIFs are between 1.19 and 1.70.

If I include the same construct (INFO with INFO1-8) in a larger model with other constructs, this problem doesn't occur.

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### Re: Getting N/A error while doing a consistent PLS Algorithm

You may send your project (including model and datafile) to our support and they can have a look at the issue.

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### Re: Getting N/A error while doing a consistent PLS Algorithm

Thank you for sending us your request.
The problem is that you only have one construct in your model. Such a model is not estimable with PLS. The normal PLS algorithm needs at least two connected constructs for identification of the model.
It seems to be a small bug in the latest release that the path model does not invalidate. The specific validator seems to be inactive. Previous releases would not have allowed such a model to turn valid and thus would prevent users from estimating algorithms on such an invalid model. We will fix that in the next release.