@fede (nixtla) (they/them) @Cristian (Nixtla) @Max (Nixtla) First off thank you for getting Forecasting: Principles and Practice available for use with Python. I started my forecasting journey in R and this was/is my go to book. I am making my way through the book and was hoping you could answer a question for me. In section 3.3 Moving Averages, a centered moving average is used as opposed to a right-aligned moving average. What are the benefits to using a centered moving average since it results in NA values on the front and back end of the dataset. I typically use right-aligned to reduce NAs in the future data. Additionally, wouldn't using a centered moving average during model training be data leakage?