Application Of Quasi-case-deletion Method Based On Regression And Time Series Model

A quasi-case-deletion model based on regression model and time series model is proposed in this paper.Firstly,the case-deletion diagnostic method for linear regression model is briefly introduced.Secondly,a quasi-case-deletion diagnostic method for linear model with correlated errors and time series model is proposed.What s more,the asymptotic equivalence of the estimates of regression coefficients for case-deletion model and quasi-case-deletion model is given when the errors are independent.Finally,the effectiveness of quasi-case deletion method is illustrated by real examples and simulation studies.