simPH: An R Package for Illustrating Estimates from Cox Proportional Hazard Models Including for Interactive and Nonlinear Effects

  • The R package simPH provides tools for effectively communicating results from Cox proportional hazard (PH) models, including models with interactive and nonlinear effects. The Cox (PH) model is a popular tool for examining event data. However, previously available computational tools have not made it easy to explore and communicate quantities of interest and associated uncertainty estimated from them. This is especially true when the effects are interactions or nonlinear transformations of continuous variables. These transformations are especially useful with Cox PH models because they can be employed to correctly specifying models that would otherwise violate the nonproportional hazards assumption. Package simPH makes it easy to simulate and then plot quantities of interest for a variety of effects estimated from Cox PH models including interactive effects, nonlinear effects, as well as standard linear effects. Package simPH employs visual weighting in order to effectively communicate estimation uncertainty. There are options to show either the standard central interval of the simulation’s distribution or the shortest probability interval – which can be useful for asymmetrically distributed estimates. This paper uses hypothetical and empirical examples to illustrate package simPH’s syntax and capabilities.
Metadaten
Document Type:Article
Language:English
Author(s):Christopher Gandrud
Parent Title (English):Journal of Statistical Software
ISSN:1548-7660
Publisher:University of California at Los Angeles
Place of Publisher:Los Angeles
Publication year:2015
Publishing Institution:Hertie School
First Page:1
Last Page:20
DOI:https://doi.org/10.18637/jss.v065.i03
Release Date:2015/08/05
Volume:65
Issue:3
Notes:
There are supplements to the paper available for download following the DOI.
Relation (DC):i n f o : e u - r e p o / g r a n t A g r e e m e n t / EUFund / Testfund / 123456 / HertieSchoolRecht / Testproject / TPA
Licence of document (German):CC BY 3.0
Verstanden ✔
Diese Webseite verwendet technisch erforderliche Session-Cookies. Durch die weitere Nutzung der Webseite stimmen Sie diesem zu. Unsere Datenschutzerklärung finden Sie hier.