Construct a useful user-defined composite using the predictors. Describe situations where the composite would be more appropriate or useful than the principal components, and vice versa. Use the wine_quality_training data set, available at the textbook web site, for the remaining exercises. The data consist of chemical data about some wines from Portugal. The target variable is quality. Remember to omit the target variable from the dimension-reduction analysis. Unless otherwise indicated, use only the white wines for the analysis.