Research on the Estimation of Weibull Mixed Model with Interval Censored Data
Weibull distribution has a wide range of applications in the field of survival analysis.In this paper,a new mixed model of three-parameter Weibull distribution is proposed.The mixed model is constructed under different shape parameters.The EM algorithm is used to estimate the three-parameter Weibull mixed model and the three-parameter Weibull regression mixed model with covariates with interval censored data.At the same time,the corresponding numerical simulation research is carried out to verify the superiority of the proposed method under limited samples.Finally,the model is applied to the final and the proposed model is applied to a set of actual data on children's dental health,which verifies the effectiveness of the proposed model and has certain practical significance.
万方数据
维普
