Quantization method for superior effectiveness of component indexes based on double-sample difference test

The invention relates to a quantitative method of component index effectiveness based on double-sample difference test. The quantitative method comprises the following steps: S1, calculating a mean value and a variance of a component index SN and a target product index SI sample; 2, calculating the numerical value of the degree of freedom df, and rounding up; checking a t distribution table according to the rounded degree of freedom # imgabs0 # given confidence requirement alpha to obtain a distribution value t0; 3, constructing a component index optimal effect statistical magnitude T; step 4, setting element index effectiveness delta S; 5, substituting the component index optimal effect delta S, the mean value and the variance of the component index SN and the target product index SI sample into the component index optimal effect statistical magnitude T, and calculating the statistical magnitude T; step 6, judging whether the component index optimal effect statistic T obtained by calculating the current comp