特征向量

a₁

a₂

a₃

0.702044

0.035057

0.324482

−0.18087

−0.60655

0.029542

−0.63515

0.188917

−0.68442

0.302636

−0.70854

−0.05907

0.291035

−0.16851

−0.61756

销售价

−0.05695

0.529225

0.740037

−0.11475

0.394783

折扣

0.03145

−0.55838

0.476093

0.676234

0.057174

特征值

2.249432

1.59588

1.140183

0.014189

0.000315

贡献率

0.449886

0.319176

0.228037

0.002838

6.31E−05

累计贡献率

0.449886

0.769062

0.997099

0.999937

1