dplR: Dendrochronology Program Library in R

Perform tree-ring analyses such as detrending, chronology building, and cross dating. Read and write standard file formats used in dendrochronology.

Version: 1.8.0
Depends: R (≥ 3.5.0)
Imports: graphics, grDevices, grid, stats, utils, lattice (≥ 0.13-6), Matrix (≥ 1.0-3), digest (≥ 0.2.3), matrixStats (≥ 0.50.2), png (≥ 0.1-2), R.utils (≥ 1.32.1), stringi (≥ 0.2-3), stringr (≥ 0.4), XML (≥ 2.1-0), signal, boot, lme4, lifecycle, data.table (≥ 1.14.0)
Suggests: Cairo (≥ 1.5-0), foreach, gmp (≥ 0.5-5), iterators, knitr, RColorBrewer, rmarkdown (≥ 2.12), testthat (≥ 0.8)
Published: 2026-10-01
DOI: 10.32614/CRAN.package.dplR
Author: Andy Bunn [aut, cph, cre, trl], Mikko Korpela [aut, cph, trl], Franco Biondi [aut, cph], Filipe Campelo [aut, cph], Stefan Klesse [aut, cph], Pierre Mérian [aut, cph], Fares Qeadan [aut, cph], Christian Zang [aut, cph], Allan Buras [ctb], Alice Cecile [ctb], Manfred Mudelsee [ctb], Michael Schulz [ctb], David Frank [ctb], Ronald Visser [ctb], Ed Cook [ctb], Kevin Anchukaitis [ctb]
Maintainer: Andy Bunn <bunna at wwu.edu>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
Copyright: Authors and file inst/COPYRIGHTS
dplR copyright details
URL: https://github.com/OpenDendro/dplR
NeedsCompilation: yes
Citation: dplR citation info
Materials: NEWS, ChangeLog
CRAN checks: dplR results

Documentation:

Reference manual: dplR.html , dplR.pdf
Vignettes: Getting Started with dplR (source, R code)
Mathematical Details of Functions in dplR (source, R code)

Downloads:

Package source: dplR_1.8.0.tar.gz
Windows binaries: r-devel: dplR_1.7.9.zip, r-release: dplR_1.7.9.zip, r-oldrel: dplR_1.7.9.zip
macOS binaries: r-release (arm64): dplR_1.7.9.tgz, r-oldrel (arm64): dplR_1.7.9.tgz, r-release (x86_64): dplR_1.7.9.tgz, r-oldrel (x86_64): dplR_1.8.0.tgz
Old sources: dplR archive

Reverse dependencies:

Reverse depends: detrendeR, pointRes
Reverse imports: AgeBandDecomposition, dendroNetwork, dendroTools, dfoliatR, iadf, mbr, measuRing, TRADER, xRing
Reverse suggests: fPortfolio

Linking:

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