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dplR

Overview

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

Installation

The latest release version of dplR is installed from CRAN as follows:

install.packages("dplR")

The development version can be installed with devtools (install.packages("devtools")):

devtools::install_github("andybunn/dplR")

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Version

Install

install.packages('dplR')

Monthly Downloads

3,577

Version

1.7.0

License

GPL (>= 2)

Issues

Pull Requests

Stars

Forks

Repository

https://github.com/AndyBunn/dplR

Maintainer

Andy Bunn

Last Published

July 18th, 2019

Functions in dplR (1.7.0)

corr.series.seg

Compute Correlation between a Series and a Master Chronology

Build Mean Value Chronology

Cross-Correlation between a Series and a Master Chronology

Compute Correlations between Series

Plot a Tree-Ring Chronology

Read Ring Width File from CSV

Rothenburg Tree Ring Widths

Smoothing Spline with User-Specified Rigidity and Frequency Cutoff

Calculate the Gini Coefficient

Dendrochronology Program Library in R

Defunct functions in dplR

Detrend Multiple Ring-Width Series Simultaneously

Calculate Gleichl<U+00E4>ufigkeit

Detrend a Ring-Width Series

Interactively Detrend Multiple Ring-Width Series

Plotting Rwl Objects

Calculates Pointer Years from a Group of Ring-Width Series

Convert Pith Offset to Wood Completeness

Plotting crs Objects

Red-Noise Spectra of Time-Series

rwi.stats.running

(Running Window) Statistics on Detrended Ring-Width Series

C-Method Standardization

Chronology Stripping by EPS

Calculate Tukey's Biweight Robust Mean

Read DPL Compact Format Ring Width File

Ponderosa Pine Distance to Pith Corresponding to gp.rwl

Hurricane Ridge, Pacific silver fir

Regional Curve Standardization

Schulman Old Tree No. 1, Mesa Verde

Combine Tree-Ring Data Sets

Plot a Continuous Wavelet Transform

Ponderosa Pine Stem Diameters and Bark Thickness (gp.rwl)

Read Heidelberg Format Ring Width File

Perform a Continuous Morlet Wavelet Transform

Read Tucson Format Chronology File

Convert Character Strings for Use with LaTeX

Superposed Epoch Analysis

common.interval

Common Interval

Ponderosa Pine Pith Offsets Corresponding to gp.rwl

fill.internal.NA

Fill Internal NA

print.rwl.report

Do some reporting on a RWL object

Date Conversion to Character in LaTeX Format

Read Site-Tree-Core IDs

Add Raster Elements to Plot

Read Ring Width File

interseries.cor

Individual Series Correlation Against a Master Chronology

Write Tucson Format Chronology File

Skeleton Plot for Series and Master with Cross Correlation

Subsample Signal Strength

Write Chronology File

Skeleton Plot for Series and Master

series.rwl.plot

Plot Series and a Master

Ponderosa Pine Ring Widths from Gus Pearson Natural Area

Read Tree Ring Data Standard (TRiDaS) File

Low-pass, high-pass, band-pass, and stop-pass filtering

Power Transformation of Tree-Ring Data

i.detrend.series

Interactively Detrend a Ring-Width Series

Edit a Ring-Width Series

Printing Redfit Results

Do some reporting on a RWL object

Calculate Descriptive Summary Statistics on Ring-Width Series

Read Tucson Format Ring Width File

Convert Wood Completeness to Pith Offset

Calculate Mean Sensitivity on Series with a Trend

Calculate Mean Sensitivity

Write DPL Compact Format Ring Width File

Return time values for rwl and crn objects

Calculate mean across cores in a tree

tridas.vocabulary

Browse and Check Standard TRiDaS Vocabulary

Write Tucson Format Chronology File

Write Tree Ring Data Standard (TRiDaS) file

Campito Mountain Tree Ring Widths

Basal Area Increment (Inside Out)

Basal Area Increment (Outside In)

Twisted Tree Heartrot Hill Standard Chronology