Statistical Details for PLS Discriminant Analysis

You can perform a Partial Least Squares Discriminant Analysis (PLS-DA) by using the Partial Least Squares personality in the Fit Model platform. When a categorical variable is entered as Y in the launch window, it is coded using indicator coding. If there are k levels, each level is represented by an indicator variable with the value 1 for rows in that level and 0 otherwise. The resulting k indicator variables are treated as continuous and the PLS analysis proceeds as it would with continuous Ys.