Journal of the Korean Data and Information Science Society

The Korean Data and Information Science Society (한국데이터정보과학회)
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A visualizing method for investigating individual frailties using frailtyHL R-package

  • Ha, Il Do (Department of Asset Management, Daegu Haany University) ;
  • Noh, Maengseok (Department of Statistics, Pukyong National University)
  • Received : 2013.06.03
  • Accepted : 2013.07.07
  • Published : 2013.07.31
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Abstract

For analysis of clustered survival data, the inferences of parameters in semi-parametric frailty models have been widely studied. It is also important to investigate the potential heterogeneity in event times among clusters (e.g. centers, patients). For purpose of this analysis, the interval estimation of frailty is useful. In this paper we propose a visualizing method to present confidence intervals of individual frailties across clusters using the frailtyHL R-package, which is implemented from h-likelihood methods for frailty models. The proposed method is demonstrated using two practical examples.

Keywords

References

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