摘要
提出了一种区间数据整体估计方法,给出整体分布参数的最佳线性无偏估计量及其协方差矩阵,得到了正态分布、Weibull分布等位置-尺度分布族区间数据百分位值和百分率的置信限估计.该方法可以将不同条件下的试验数据作为一个整体进行统计推断,将传统的只适用于完全数据的回归分析推广到工程中常见的区间数据的情况.
A new method of integral estimate for interval censored data is presented in this paper. The integral distribution parameter estimators and their covariance are derived, the confidence limits of percentiles and percentages for the interval censored data from normal distribution, Weibull distribution or other location-scale distribution are also obtained. This method takes test data in different states as an integer, makes an statistical inference, and extends traditional regression analysis that is only suitable for complete data to interval censored data.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2007年第2期175-179,共5页
Journal of Aerospace Power
基金
国家自然科学基金项目(10472006)
关键词
航空
航天推进系统
区间数据
整体估计
回归分析
可靠性
寿命预测
aerospace propulsion system
interval censored data
integral estimate
regression analysis
reliability
life prediction
