岭头单丛茶微量元素和黄酮含量与季节关系的主成分分析研究

Principal component analysis study on the Relationship between the Contents of Trace Elements and Flavone of Lingtoudancong Oolong Tea and the different seasons

运用主成分分析法对岭头单丛茶中微量元素和黄酮含量进行综合评价。主成分综合指标是由原来多个指标线性组合而成,使分析问题大大简化,而仅仅丢失少量信息,在综合评价中,由第1和第2主成分累计方差贡献率为85.998%。

The principal component analysis is applied to the trace dements and flavone evalution of tea. It can obviously simplify data structure for original multidimensional comprehensive variable and minimize the loss of original data information. The total contributing rate of the comprehensive principal componnent, which is made up of the first principal component and the second principal component, is 85. 889 %.