"contrast can be applied only to factors with 2 or more levels" message

drfuad · Post by **drfuad** » Sat Jun 17, 2023 8:03 am

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.

: Capture.JPG (75.42 KiB) Viewed 1370 times

MAgojam · Post by **MAgojam** » Sat Jun 17, 2023 11:19 am

Hi @drfuad,
you have a cross between "Institutional Delivery" and "CS", with No data.
Take a look at the screenshot.

: ScreenShot_20230617130640.jpeg (226.52 KiB) Viewed 1359 times

Cheers,
Maurizio

jamovi