# --------------------------------------------
# CITATION file created with {cffr} R package
# See also: https://docs.ropensci.org/cffr/
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cff-version: 1.2.0
message: 'To cite package "extr" in publications use:'
type: software
license: BSD-2-Clause
title: 'extr: Extinction Risk Estimation'
version: 1.1.1
doi: 10.1111/2041-210X.70294
identifiers:
- type: doi
  value: 10.32614/CRAN.package.extr
abstract: Estimates extinction risk from population time series under a drifted Wiener
  process using MLE and observation-error-and-autocovariance-robust estimators, with
  confidence intervals based on the w-z method.
authors:
- family-names: Hakoyama
  given-names: Hiroshi
  email: hiroshi.hakoyama@gmail.com
  orcid: https://orcid.org/0000-0001-7464-0754
preferred-citation:
  type: article
  title: 'Confidence intervals for extinction risk: Validating population viability
    analysis with limited data'
  authors:
  - family-names: Hakoyama
    given-names: Hiroshi
    email: hiroshi.hakoyama@gmail.com
    orcid: https://orcid.org/0000-0001-7464-0754
  year: '2026'
  journal: Methods in Ecology and Evolution
  volume: '17'
  doi: 10.1111/2041-210X.70294
  notes: Preprint available at https://doi.org/10.48550/arXiv.2509.09965
  start: '1837'
  end: '1850'
repository: https://hakoyamah.r-universe.dev
commit: 8807bd2efecfe5ce48906f94a153519945cc5661
date-released: '2026-06-09'
contact:
- family-names: Hakoyama
  given-names: Hiroshi
  email: hiroshi.hakoyama@gmail.com
  orcid: https://orcid.org/0000-0001-7464-0754