EDE: Extinction Date Estimation from Sighting Records

Estimates the historic date of extinction of a species from a time-ordered record of sighting events. Given a table of sighting counts per year, computes extinction date estimators from the sighting-record literature: optimal linear estimation under a record-value model (Roberts & Solow, 2003), nonparametric and sighting-effort-weighted persistence tests (Solow, 1993; Solow, 2005), a sighting-rate persistence test comparable across records with different observation periods (McInerny, Roberts, Davy & Cribb, 2006), a classical confidence interval on the end of a temporal range (Strauss & Sadler, 1989), a truncation-point extrapolation (Robson & Whitlock, 1964), and a combinatorial persistence test based on inclusion-exclusion over sighting-gap occupancy (Burgman, Grimson & Ferson, 1995). Every estimator is built on a single validated input object and returns a common result class with, where defined, a point estimate, a confidence interval, or a full persistence-probability curve.

Version:	0.1.0
Depends:	R (≥ 4.1.0)
Suggests:	testthat (≥ 3.0.0), knitr, rmarkdown, ggplot2
Published:	2026-08-07
DOI:	10.32614/CRAN.package.EDE (may not be active yet)
Author:	Rodrigo Fonseca Villa [aut, cre]
Maintainer:	Rodrigo Fonseca Villa <rodrigo03.villa at gmail.com>
BugReports:	https://github.com/rodrigosqrt3/EDE/issues
License:	GPL (≥ 3)
URL:	https://github.com/rodrigosqrt3/EDE
NeedsCompilation:	no
Language:	en-US
Materials:	README
CRAN checks:	EDE results

Documentation:

Reference manual:	EDE.html , EDE.pdf
Vignettes:	Estimating extinction dates from sighting records (source, R code)

Downloads:

Package source:	EDE_0.1.0.tar.gz
Windows binaries:	r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries:	r-release (arm64): EDE_0.1.0.tgz, r-oldrel (arm64): EDE_0.1.0.tgz, r-release (x86_64): EDE_0.1.0.tgz, r-oldrel (x86_64): EDE_0.1.0.tgz

Linking:

Please use the canonical form https://CRAN.R-project.org/package=EDE to link to this page.