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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 "fastfocal" in publications use:'
type: software
license: MIT
title: 'fastfocal: Fast Multiscale Raster Extraction and Moving Window Analysis with
  FFT'
version: 0.1.4
doi: 10.5281/zenodo.17074691
identifiers:
- type: doi
  value: 10.32614/CRAN.package.fastfocal
- type: url
  value: https://doi.org/10.5281/zenodo.17074691
abstract: Provides fast moving-window ("focal") and buffer-based extraction for raster
  data using the 'terra' package. Automatically selects between a 'C++' backend (via
  'terra') and a Fast Fourier Transform (FFT) backend depending on problem size. The
  FFT backend supports sum and mean, while other statistics (e.g., median, min, max,
  standard deviation) are handled by the 'terra' backend. Supports multiple kernel
  types (e.g., circle, rectangle, gaussian), with NA handling consistent with 'terra'
  via 'na.rm' and 'na.policy'. Operates on 'SpatRaster' objects and returns results
  with the same geometry.
authors:
- family-names: Wan
  given-names: Ho Yi
  email: hoyiwan@gmail.com
  orcid: https://orcid.org/0000-0002-2146-8257
preferred-citation:
  type: manual
  title: 'fastfocal: Fast Multi-scale Raster Extraction and Moving Window Analysis
    with Fast Fourier Transform (FFT) in R'
  authors:
  - family-names: Wan
    given-names: Ho Yi
    email: hoyiwan@gmail.com
    orcid: https://orcid.org/0000-0002-2146-8257
  year: '2025'
  notes: R package version 0.1.4
  doi: 10.5281/zenodo.17074691
  url: https://hoyiwan.github.io/fastfocal/
  publisher:
    name: Zenodo
repository: https://hoyiwan.r-universe.dev
repository-code: https://github.com/hoyiwan/fastfocal
commit: a2bb36c65a7f29bcd187dfd3dd0e6e5a13c02147
url: https://hoyiwan.github.io/fastfocal/
date-released: '2025-09-09'
contact:
- family-names: Wan
  given-names: Ho Yi
  email: hoyiwan@gmail.com
  orcid: https://orcid.org/0000-0002-2146-8257