**3. Results**

In this section, the results from applying each of the DMAIC steps (Define, Measure, Analyze, Improve, and Control) to the process are shown, each in their own subsection. Note that latent variable-based methods such as PCA or PLS are used, instead of more classical ones such as MLR or even ML. Therefore, the tools implemented in some of the steps of the DMAIC cycle differ from more traditional approaches, but the original purpose of each stage remains.
