Ignorability in general incomplete-data models
Ignorability in general incomplete-data models
复制标题
一般不完整数据模型中的可忽略性
DOI:
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发表时间:
1994
期刊:
影响因子:
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通讯作者:
D. Heitjan
中科院分区:
文献类型:
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作者:
D. Heitjan
SUMMARY Rubin (1976) defined ignorability conditions for frequentist and Bayes/likelihood analyses of data subject to missing observations. More recently, Heitjan & Rubin (1991) and Heitjan (1993) generalised the Rubin model to encompass other forms of incompleteness, establishing ignorability conditions for Bayes/likelihood inferences only. This paper extends the Heitjan-Rubin model by explicitly defining the observed degree of coarseness as a data element. This permits the development of a frequentist theory, including a generalisation of 'missing completely at random', the frequentist ignorability condition for missing data. The model is applied in a number of incomplete-data problems of general interest.