Hello. I’m having problems with the Polynomial regression learner. The following image shows part of the data used for learning. Whenever I try to insert one of these first columns (integers until ZY), I get the error shown in the other figure. I’ve also added some figures of the console and the workflow. If I do not include any of these columns, it works perfectly (although I get bad results).
These 5 first columns correspond to dummy variables that have been created outside of KNIME, and I’m trying to learn a regression model of degree 2.