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# 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 "pep725" in publications use:'
type: software
license: GPL-3.0-only
title: 'pep725: Pan-European Phenological Data Analysis'
version: 1.1.0
doi: 10.1111/nph.70869
identifiers:
- type: doi
  value: 10.32614/CRAN.package.pep725
abstract: Provides a framework for quality-aware analysis of ground-based phenological
  data from the PEP725 Pan-European Phenology Database (Templ et al. (2018) <https://doi.org/10.1007/s00484-018-1512-8>;
  Templ et al. (2026) <https://doi.org/10.1111/nph.70869>) and similar observation
  networks. Implements station-level data quality grading, outlier detection, phenological
  normals (climate baselines), anomaly detection, elevation and latitude gradient
  estimation with robust regression, spatial synchrony quantification, partial least
  squares (PLS) regression for identifying temperature-sensitive periods, and sequential
  Mann-Kendall trend analysis. Supports data import from PEP725 files, conversion
  of user-supplied data, and downloadable synthetic datasets for teaching without
  barriers of registration. All analysis outputs provide 'print', 'summary', and 'plot'
  methods. Interactive spatial visualization is available via 'leaflet'.
authors:
- family-names: Templ
  given-names: Matthias
  email: matthias.templ@gmail.com
  orcid: https://orcid.org/0000-0002-8638-5276
- family-names: Templ
  given-names: Barbara
  email: barbara.a.templ@gmail.com
  orcid: https://orcid.org/0000-0002-9391-5888
preferred-citation:
  type: article
  title: 'Enhancing Reproducibility in Phenology Research: The pep725 R Package for
    Quality-Aware Analysis of PEP725 Data'
  authors:
  - family-names: Templ
    given-names: Matthias
    email: matthias.templ@gmail.com
    orcid: https://orcid.org/0000-0002-8638-5276
  - family-names: Templ
    given-names: Barbara
    email: barbara.a.templ@gmail.com
    orcid: https://orcid.org/0000-0002-9391-5888
  journal: New Phytologist
  year: '2026'
  doi: 10.1111/nph.70869
repository: https://matthias-da.r-universe.dev
repository-code: https://github.com/matthias-da/pep725
commit: c1b354a2dc3c79c18ea58dd786cedac3628236c1
url: https://github.com/matthias-da/pep725
date-released: '2026-04-23'
contact:
- family-names: Templ
  given-names: Matthias
  email: matthias.templ@gmail.com
  orcid: https://orcid.org/0000-0002-8638-5276
references:
- type: article
  title: 'Pan European Phenological database (PEP725): a single point of access for
    European data'
  authors:
  - family-names: Templ
    given-names: Barbara
  - family-names: Koch
    given-names: Elisabeth
  - family-names: Bolmgren
    given-names: Kjell
  - family-names: Markus
    given-names: Ungersb\u00f6ck
  - family-names: Paul
    given-names: Anita
  - family-names: Scheifinger
    given-names: Helfried
  - family-names: Rutishauser
    given-names: This
  - family-names: Busto
    given-names: Montserrat
  - family-names: Chmielewski
    given-names: Frank-M.
  - family-names: Lenka
    given-names: H\u00e1jkov\u00e1
  - family-names: Sabina
    given-names: Hod\u017ei\u0107
  - family-names: Kaspar
    given-names: Frank
  - family-names: Pietragalla
    given-names: Barbara
  - family-names: Romero-Fresneda
    given-names: Ramiro
  - family-names: Tolvanen
    given-names: Anne
  - family-names: Vi\u0161nja
    given-names: Vu\u010deti\u0107
  - family-names: Zimmermann
    given-names: Kirsten
  - family-names: Zust
    given-names: Ana
  journal: International Journal of Biometeorology
  year: '2018'
  volume: '62'
  doi: 10.1007/s00484-018-1512-8
  start: '1109'
  end: '1113'