Minitab Rank Deficiency Issue - Binary Logisitic Regression

J

jaywine

#1
I am running binary logistic regression for two factors which can have two possible answers. (Win or Loss). I have been successful running BLR with other two factor combinations. But am having errors with the settings listed below. Non of the cells are empty.
I suspect collinearity is the source of the error. Any suggestions to troubleshoot? Or am I interpreting the error message incorrectly?
Thanks. I am a new user with minitab.

Blogistic 'Outcome Y' = 'VP Code' 'Region Code';
Frequency 'Total';
Factors 'VP Code' 'Region Code';
Logit;
Eprobability 'EPRO8';
Brief 2.

* ERROR * Rank deficiency caused by the term Region Code due to empty cells or collinearity. No storage of results or further analysis will be
done.
 
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#2
It is always easier for us to help if you can attach your data. You can zip the Minitab file then attach that.
 
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