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  • robust variance  (1)
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    Electronic Resource
    Electronic Resource
    Springer
    Lifetime data analysis 5 (1999), S. 99-112 
    ISSN: 1572-9249
    Keywords: Cox model ; case-cohort design ; jackknife estimate ; robust variance ; finite sampling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Prentice (1986) proposed a case-cohort design as an efficient subsampling mechanism for survival studies. Several other authors have expanded on these ideas to create a family of related sampling plans, along with estimators for the covariate effects. We describe how to obtain the proposed parameter estimates and their variance estimates using standard software packages, with SAS and SPLUS as particular examples.
    Type of Medium: Electronic Resource
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