Nondetects and Data Analysis for Environmental Data R package NADA version 1.6-1.2 CRAN Task View: Epidemiology (https://CRAN.R-project.org/view=Epidemiology) CRAN Task View: Survival (https://CRAN.R-project.org/view=Survival) Contains methods described by Dennis Helsel in his book "Nondetects And Data Analysis: Statistics for Censored Environmental Data". Software Depends: R (>= 2.10), methods, survival Lopaka Lee <rclee@usgs.gov> Comprehensive R Archive Network (CRAN) Lopaka Lee [aut, cre] GPL (>= 2) 2025-08-29 application/tgz https://CRAN.R-project.org/package=NADA doi:10.32614/CRAN.package.NADA