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Changelog

Source: NEWS.md

fastfocal 0.1.4

Fixed typos in URLs.

Citation

If using fastfocal in academic work, cite this version as:

Wan, H.Y. (2025). fastfocal: Fast Multi-scale Raster Extraction and Moving Window Analysis with Fast Fourier Transform (FFT) in R. Version v0.1.4. Zenodo. https://doi.org/10.5281/zenodo.17074691

fastfocal 0.1.3

CRAN release: 2025-09-23

This release represents the version used to generate all benchmark results and figures reported in the forthcoming manuscript.

Improvements

  • Performance optimizations.
  • Refined core routines for faster runtime in typical benchmark scenarios.
  • Vignettes: explicit graphics-state resets per CRAN guidance:
    • Save and restore par() with oldpar <- par(no.readonly = TRUE); par(oldpar) around changes.
    • Reset layout() with layout(1) when used.

fastfocal 0.1.2

  • Fix: NA-semantic parity with terra::focal() under na.rm=TRUE/FALSE and na.policy="omit"; removed speckle artifacts at NA boundaries.
  • Fix: Correct matrix orientation and final transpose in FFT path.
  • Perf: Auto-padding to next 5-smooth lengths (2*3*5 factors) to avoid large-prime slowdowns in FFTs.
  • Rebuilt vignettes and refreshed documentation.
  • Fixed Rd markup (e.g., replaced terra with \pkg{terra}).
  • Removed non-ASCII characters from R sources and roxygen; math now uses Rd math (e.g., \eqn{\sigma}).
  • Vignettes now restore user graphics state:
    • Added oldpar <- par(no.readonly = TRUE); on.exit(par(oldpar), add = TRUE) in chunks that modify par(...).
    • Added on.exit(layout(1), add = TRUE) in chunks that use layout(...).
  • No changes to options() or working directory in examples/vignettes.

fastfocal 0.1.1

  • First public release (submitted to CRAN).
  • Added Zenodo DOI and updated citation information.
  • Updated vignettes (index.Rmd and benchmark.Rmd) with correct version numbers and DOI.
  • Clarified that the FFT backend supports only sum and mean; other statistics handled by the terra backend.
  • README and DESCRIPTION updated for consistency (license MIT, DOI, installation instructions).
  • Added inst/CITATION file so that citation("fastfocal") prints the DOI and pkgdown URL.

fastfocal 0.1.0

  • Internal development version (not submitted to CRAN).