The Evaluation Model of Grape Wine Quality Based on Multivariate Statistical Methods

Abstract

The purpose of this study is to establish contacts of the physiochemical indexes between the Wine grapes and the Wines. Because of a wide range of physiochemical indexes, in order to more clearly reflect the contact between Wine grapes and Wines, firstly, the principal component analysis is used to select principal components and the correlation matrix is established based on the corresponding variables of principal components. And then, by stepwise regression method, the function of the relationship of physiochemical indexes between the Wines and Wine grapes is fitted, through which shows a strong correlation between the physiochemical indexes of Wines and Wine grapes.