AgeBandDecomposition: Age Band Decomposition Method for Tree Ring Standardization

Implements the Age Band Decomposition (ABD) method for standardizing tree ring width data while preserving both low and high frequency variability. Unlike traditional detrending approaches that can distort long term growth trends, ABD decomposes ring width series into multiple age classes, detrends each class separately, and then recombines them to create standardized chronologies. This approach improves the detection of growth signals linked to past climatic and environmental factors, making it particularly valuable for dendroecological and dendroclimatological studies. The package provides functions to perform ABD-based standardization, compare results with other common methods (e.g., BAI, C method, RCS), and facilitate the interpretation of growth patterns under current and future climate variability.

Version:	1.0.1
Depends:	R (≥ 4.1.0)
Imports:	dplyr, tidyr, tibble, readxl, ggplot2, patchwork
Suggests:	testthat (≥ 3.0.0)
Published:	2025-07-28
DOI:	10.32614/CRAN.package.AgeBandDecomposition
Author:	Nicola Puletti [aut, cre], Gianluigi Mazza [aut]
Maintainer:	Nicola Puletti <nicola.puletti at crea.gov.it>
License:	GPL (≥ 3)
URL:	https://gitlab.com/Puletti/agebanddecomposition_rpackage
NeedsCompilation:	no
Language:	en-US
Materials:	README
CRAN checks:	AgeBandDecomposition results

Documentation:

Reference manual:

AgeBandDecomposition.html , AgeBandDecomposition.pdf

Downloads:

Package source:	AgeBandDecomposition_1.0.1.tar.gz
Windows binaries:	r-devel: AgeBandDecomposition_1.0.1.zip, r-release: not available, r-oldrel: not available
macOS binaries:	r-release (arm64): AgeBandDecomposition_1.0.1.tgz, r-oldrel (arm64): AgeBandDecomposition_1.0.1.tgz, r-release (x86_64): AgeBandDecomposition_1.0.1.tgz, r-oldrel (x86_64): AgeBandDecomposition_1.0.1.tgz

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