Offers tools for data formatting, anomaly detection, and classification
of tree-ring data using spatial comparisons and cross-correlation.
Supports flexible detrending and climate–growth modeling via generalized
additive mixed models (Wood 2017, ISBN:978-1498728331) and the 'mgcv'
package (<https://CRAN.R-project.org/package=mgcv>), enabling robust
analysis of non-linear trends and autocorrelated data. Provides
standardized visual reporting, including summaries, diagnostics, and
model performance. Compatible with '.rwl' files and tailored for the
Canadian Forest Service Tree-Ring Data (CFS-TRenD) repository
(Girardin et al. (2021) <doi:10.1139/er-2020-0099>), offering
a comprehensive and adaptable framework for dendrochronologists working
with large and complex datasets.
| Version: |
0.2.0 |
| Depends: |
R (≥ 4.3.0) |
| Imports: |
data.table (≥ 1.17.8), stringr (≥ 1.4.0), stats (≥ 4.3.2), mgcv (≥ 1.8.0), ggplot2 (≥ 3.0.0), nlme (≥ 3.0.0), patchwork (≥ 1.0.0), terra (≥ 1.7-71), raster (≥ 3.6-26), furrr (≥ 0.3.1), future (≥ 1.34.0), pryr (≥ 0.1.6), htmltools (≥ 0.5.9), curl (≥ 7.0.0), dplyr (≥ 1.1.4) |
| Suggests: |
knitr, geosphere, ggeffects (≥ 2.3.0), ggforce (≥ 0.4.2), gstat (≥ 2.1-3), scales (≥ 1.3.0), purrr (≥ 1.0.0), parallel (≥
4.3.0), MuMIn (≥ 1.48.2), rmarkdown (≥ 2.29), rstudioapi (≥
0.16), MASS (≥ 7.3-60), sf (≥ 1.0-15), sp (≥ 2.1.0), spdep (≥
1.3), magick (≥ 2.8.6), gt (≥ 1.2.0), kableExtra (≥ 1.4.0), httr (≥ 1.4.7) |
| Published: |
2026-01-24 |
| DOI: |
10.32614/CRAN.package.growthTrendR (may not be active yet) |
| Author: |
Xiao Jing Guo [aut, cre],
Martin Girardin [aut],
Juha Metsaranta [aut],
David Gervais [aut],
Elizabeth Campbell [aut] |
| Maintainer: |
Xiao Jing Guo <xiaojing.guo at nrcan-rncan.gc.ca> |
| License: |
GPL-3 |
| NeedsCompilation: |
no |
| Materials: |
README |
| CRAN checks: |
growthTrendR results |