👉 In statistics, a "previsor" is an estimator or model that is used to generate predictions before using them in a regression analysis. The goal of a previsor is to provide a starting point for estimating a dependent variable's value based on past data and potentially predict future values. Previsors are often used in statistical models to make predictions about the future by taking into account historical trends, seasonality, or other factors that might influence the outcome. They can be either simple linear estimators,