I was trying to conduct a binomial logistic regression with two predictor variables. All of my variables have 2 categories. However, when it run the model, the following error message pops up. I do have other variables that runs ok. But whenever I add these two variables, the following message is shown.
What should I do?
Regards.
P.S.: the CS variable contains a lot of (almost 50%) missing values.
"contrast can be applied only to factors with 2 or more levels" message
"contrast can be applied only to factors with 2 or more levels" message
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Re: "contrast can be applied only to factors with 2 or more levels" message
Hi @drfuad,
you have a cross between "Institutional Delivery" and "CS", with No data.
Take a look at the screenshot. Cheers,
Maurizio
you have a cross between "Institutional Delivery" and "CS", with No data.
Take a look at the screenshot. Cheers,
Maurizio