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dplR (version 1.7.6)

Dendrochronology Program Library in R

Description

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

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Install

install.packages('dplR')

Monthly Downloads

4,555

Version

1.7.6

License

GPL (>= 2)

Issues

Pull Requests

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Maintainer

Last Published

November 30th, 2023

Functions in dplR (1.7.6)

co021

Schulman Old Tree No. 1, Mesa Verde
chron.ars

Build ARSTAN Chronology
corr.rwl.seg

Compute Correlations between Series
gp.d2pith

Ponderosa Pine Distance to Pith Corresponding to gp.rwl
common.interval

Common Interval
combine.rwl

Combine Tree-Ring Data Sets
gini.coef

Calculate the Gini Coefficient
glk

Calculate Gleichläufigkeit
gp.dbh

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

Hanning Filter
chron.ci

Build Mean Value Chronology with Confidence Intervals
detrend

Detrend Multiple Ring-Width Series Simultaneously
detrend.series

Detrend a Ring-Width Series
corr.series.seg

Compute Correlation between a Series and a Master Chronology
latexDate

Date Conversion to Character in LaTeX Format
interseries.cor

Individual Series Correlation Against a Master Chronology
i.detrend

Interactively Detrend Multiple Ring-Width Series
cms

C-Method Standardization
i.detrend.series

Interactively Detrend a Ring-Width Series
powt

Power Transformation of Tree-Ring Data
plot.crs

Plotting crs Objects
csv2rwl

Read Ring Width File from CSV
gp.rwl

Ponderosa Pine Ring Widths from Gus Pearson Natural Area
ffcsaps

Smoothing Spline with User-Specified Rigidity and Frequency Cutoff
fill.internal.NA

Fill Internal NA
gp.po

Ponderosa Pine Pith Offsets Corresponding to gp.rwl
insert.ring

Edit a Ring-Width Series
po.to.wc

Convert Pith Offset to Wood Completeness
chron.stabilized

Build Mean Value Chronology with Stabilized Variance
pointer

Calculates Pointer Years from a Group of Ring-Width Series
plot.rwl

Plotting Rwl Objects
print.redfit

Printing Redfit Results
net

Calculate NET
nm046

Los Alamos Tree Ring Widths
read.crn

Read Tucson Format Chronology File
read.tridas

Read Tree Ring Data Standard (TRiDaS) File
print.rwl.report

Do some reporting on a RWL object
dplR-defunct

Defunct functions in dplR
latexify

Convert Character Strings for Use with LaTeX
read.tucson

Read Tucson Format Ring Width File
dplR-package

Dendrochronology Program Library in R
read.ids

Read Site-Tree-Core IDs
read.rwl

Read Ring Width File
rasterPlot

Add Raster Elements to Plot
sgc

Synchronous Growth Changes
series.rwl.plot

Plot Series and a Master
rwl.stats

Calculate Descriptive Summary Statistics on Ring-Width Series
sea

Superposed Epoch Analysis
seg.plot

Segment Plot
rwl.report

Do some reporting on a RWL object
redfit

Red-Noise Spectra of Time-Series
strip.rwl

Chronology Stripping by EPS
rwi.stats.running

(Running Window) Statistics on Detrended Ring-Width Series
tbrm

Calculate Tukey's Biweight Robust Mean
read.compact

Read DPL Compact Format Ring Width File
read.fh

Read Heidelberg Format Ring Width File
uuid.gen

UUID Generator
tridas.vocabulary

Browse and Check Standard TRiDaS Vocabulary
sens2

Calculate Mean Sensitivity on Series with a Trend
sens1

Calculate Mean Sensitivity
spag.plot

Spaghetti Plot
skel.plot

Skeleton Plot
wc.to.po

Convert Wood Completeness to Pith Offset
write.compact

Write DPL Compact Format Ring Width File
time.rwl

Retrieve or set the time values for rwl and crn objects
treeMean

Calculate mean across cores in a tree
morlet

Perform a Continuous Morlet Wavelet Transform
wavelet.plot

Plot a Continuous Wavelet Transform
pass.filt

Low-pass, high-pass, band-pass, and stop-pass filtering
write.tridas

Write Tree Ring Data Standard (TRiDaS) file
xdate.floater

Crossdate an undated series
xskel.plot

Skeleton Plot for Series and Master
xskel.ccf.plot

Skeleton Plot for Series and Master with Cross Correlation
write.tucson

Write Tucson Format Chronology File
write.crn

Write Tucson Format Chronology File
ssf

Simple Signal Free Standardization
rcs

Regional Curve Standardization
plot.crn

Plot a Tree-Ring Chronology
wa082

Hurricane Ridge, Pacific silver fir
sss

Subsample Signal Strength
write.rwl

Write Chronology File
ads

Age-Dependent Spline
anos1

Rothenburg Tree Ring Widths
chron

Build Mean Value Chronology
ccf.series.rwl

Cross-Correlation between a Series and a Master Chronology
caps

Cook and Peters Smoothing Spline with User-Specified Rigidity and Frequency Cutoff
ca533

Campito Mountain Tree Ring Widths
cana157

Twisted Tree Heartrot Hill Standard Chronology
bai.out

Basal Area Increment (Outside In)
bai.in

Basal Area Increment (Inside Out)
as.rwl

as.rwl