Data for: Utilizing Historical Data for Corporate Credit Rating Assessment

The dataset consists of 901 publicly-traded firms with 28 financial features that came from Quarterly reports.The financial features were collected from Bloomberg, a major financial institution which provides the financial data service in North America. The credit ratings of the firms were obtained from Standard and Poor's (S\&P); ; a total of 22 grades that are ordered from AAA rating, the most promising for investors, to D rating, the most risky one.该数据集涵盖901家公开上市企业的28项财务特征数据，所有数据均源自企业季度报告。上述财务特征数据采集自为北美地区提供金融数据服务的头部金融机构彭博（Bloomberg）。企业的信用评级则取自标准普尔（Standard and Poor's，S&P），该评级体系共包含22个等级，从对投资者最具吸引力的AAA级，直至风险最高的D级。