Implements the Butterworth-Induced Autoregressive ('BTWAR') model, where autoregressive coefficients are obtained from analog Butterworth filter prototypes mapped into the discrete-time domain using the Matched Z-Transform. The framework establishes a structured connection between frequency-domain filter design and time-domain autoregressive modeling. Model order selection is performed via nested rolling-origin cross-validation. Method described in Bras-Geraldes, Rocha and Martins (2026) <doi:10.3390/math14030479>.
| Version: | 1.0.1 |
| Depends: | R (≥ 3.5.0) |
| Imports: | ggplot2, pracma, tseries, scales |
| Suggests: | knitr, rmarkdown, spelling |
| Published: | 2026-03-19 |
| DOI: | 10.32614/CRAN.package.BTWAR |
| Author: | Carlos Bras-Geraldes [aut, cre, cph], J. Leonel Rocha [aut, cph] |
| Maintainer: | Carlos Bras-Geraldes <cgeraldes at gmail.com> |
| BugReports: | https://github.com/cgeraldes/BTWAR/issues |
| License: | GPL-3 |
| URL: | https://doi.org/10.3390/math14030479, https://github.com/cgeraldes/BTWAR |
| NeedsCompilation: | no |
| Language: | en-US |
| Citation: | BTWAR citation info |
| Materials: | NEWS |
| CRAN checks: | BTWAR results |
| Reference manual: | BTWAR.html , BTWAR.pdf |
| Vignettes: |
Introduction to the BTWAR Package (source, R code) |
| Package source: | BTWAR_1.0.1.tar.gz |
| Windows binaries: | r-devel: BTWAR_1.0.1.zip, r-release: BTWAR_1.0.1.zip, r-oldrel: BTWAR_1.0.1.zip |
| macOS binaries: | r-release (arm64): BTWAR_1.0.1.tgz, r-oldrel (arm64): BTWAR_1.0.1.tgz, r-release (x86_64): BTWAR_1.0.1.tgz, r-oldrel (x86_64): BTWAR_1.0.1.tgz |
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