You are familiar with the predictable columns from Chapter 2, Data Model Preparation and Deployment, but let's talk briefly about the input, output, and predicted columns in this chapter.
Input columns are the columns whose value is used as an input to the data mining model to predict an output. If a column is marked Predict Only, the columns are both predictable and output columns, but if a column is marked Predict, then the column is both an input and output column.