correlated error造句

• Then , the default ratios of 45 st - companies are computed and 37 potential financial index are selected referred by researches on financial distress at home and abroad . finally , the equation of default ratio is produced by stepwise regression , and three of the basic problems in linear regression are considered well , that is case - wise diagnostics and auto - correlated errors , as well as collinear relationship and teteroskedastisity
  随后，利用该期权定价理论违约率模型计算出45家st公司的违约率，结合国内外有关财务预警研究成果，收集37个相关财务指标，运用逐步回归法，通过剔除异常值、处理自相关、诊断共线性、检验异方差，建立有效回归方程。