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Computationally Efficient Implementation of a Novel Algorithm for the General Unified Threshold Model of Survival (GUTS)

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  • Carlo Albert
  • Sören Vogel
  • Roman Ashauer

Abstract

The General Unified Threshold model of Survival (GUTS) provides a consistent mathematical framework for survival analysis. However, the calibration of GUTS models is computationally challenging. We present a novel algorithm and its fast implementation in our R package, GUTS, that help to overcome these challenges. We show a step-by-step application example consisting of model calibration and uncertainty estimation as well as making probabilistic predictions and validating the model with new data. Using self-defined wrapper functions, we show how to produce informative text printouts and plots without effort, for the inexperienced as well as the advanced user. The complete ready-to-run script is available as supplemental material. We expect that our software facilitates novel re-analysis of existing survival data as well as asking new research questions in a wide range of sciences. In particular the ability to quickly quantify stressor thresholds in conjunction with dynamic compensating processes, and their uncertainty, is an improvement that complements current survival analysis methods.

Suggested Citation

  • Carlo Albert & Sören Vogel & Roman Ashauer, 2016. "Computationally Efficient Implementation of a Novel Algorithm for the General Unified Threshold Model of Survival (GUTS)," PLOS Computational Biology, Public Library of Science, vol. 12(6), pages 1-19, June.
    • Handle: RePEc:plo:pcbi00:1004978
    DOI: 10.1371/journal.pcbi.1004978
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    1. Eddelbuettel, Dirk & Francois, Romain, 2011. "Rcpp: Seamless R and C++ Integration," Journal of Statistical Software, Foundation for Open Access Statistics, vol. 40(i08).
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