A Method for Financial System Analysis of Listed Companies Based on Random Forest and Time Series

Table 1

FEWC symbols.

Class	Symbol	Definition
Profitability		Net profit/(net assets + total assets)
Solvency		Present assets/current liabilities
Growth ability		(Total assets at the end of the year-total assets at the beginning of the year)/total assets at the beginning of the year
Operating ability		Main business income/(fixed assets + total assets)
Cash flow		Liquidity/current liabilities