These 8 indexes are condened into 3 factors. using Princomp and making rotation of varimax, finally the paper evaluates every stock based on its three factor scores.

• 将八个财务指标浓缩为三个因子，利用主成分法并作方差最大旋转，计算出了因子得分。根据得分多少，对各上市公司的股票作出了综合评价。