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Model with dummy variables has 100% accuracy?
I made a classification model using logistic regression. At first, i used data set that has some nominal variables. Since my task says that i should convert nominal to numeric variables, i used dummy coding in Nominal to Numeric operator, to do that.. Then i saved that file and make a model just like in the pics, but all the time i get accuracy 100%, so something is not ok. Before i did dummy coding, accuracy was 82% with the same model.