NEWS

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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 (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).