Package: SPREDA
Type: Package
Title: Statistical Package for Reliability Data Analysis
Version: 1.2
Date: 2025-03-28
Authors@R: c(person(given = "Yili",
                      family = "Hong",
                      role = c("aut", "cre"),
                      email = "yilihong@vt.edu"),
               person(given = "Yimeng",
                      family = "Xie",
                      role = "aut"),
               person(given = "Zhibing",
                      family = "Xu",
                      role = "aut"))
Author: Yili Hong [aut, cre],
  Yimeng Xie [aut],
  Zhibing Xu [aut]
Maintainer: Yili Hong <yilihong@vt.edu>
Depends: survival, nlme
Description: The Statistical Package for REliability Data Analysis (SPREDA) implements recently-developed statistical methods for the analysis of reliability data. Modern technological developments, such as sensors and smart chips, allow us to dynamically track product/system usage as well as other environmental variables, such as temperature and humidity. We refer to these variables as dynamic covariates. The package contains functions for the analysis of time-to-event data with dynamic covariates and degradation data with dynamic covariates. The package also contains functions that can be used for analyzing time-to-event data with right censoring, and with left truncation and right censoring. Financial support from NSF and DuPont are acknowledged.  
License: GPL-2
NeedsCompilation: no
Packaged: 2025-03-29 13:56:01 UTC; yilih
Repository: CRAN
Date/Publication: 2025-03-29 14:20:02 UTC
Built: R 4.6.0; ; 2026-04-27 20:29:09 UTC; unix
