中文说明：为解决PCA不适合多指标综合分析中非线性主成分分析的问题 ，采用核主成分分析 (kpca)方法 ，对我国不同地区 16种腐乳的品质进行了综合评价。
English Description：
In order to solve the problem that PCA is not suitable for Non-linear Principal Component Analysis in multi index comprehensive analysis, the quality of 16 kinds of Sufu from different regions in China was evaluated by kernel principal component analysis (KPCA).