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dplR (version 1.8.0)
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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1.8.0
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1.0
Install
install.packages('dplR')
Monthly Downloads
4,284
Version
1.8.0
License
GPL (>= 2)
Issues
1
Pull Requests
0
Stars
43
Forks
19
Repository
https://github.com/OpenDendro/dplR
Maintainer
Andy Bunn
Last Published
October 1st, 2026
Functions in dplR (1.8.0)
Search all functions
as.rwl
as.rwl
ca533
Campito Mountain Tree Ring Widths
as.rwi
Ring-Width Index (rwi) Objects
as.bai
Basal Area Increment (bai) Objects
chron.ci
Build Mean Value Chronology with Confidence Intervals
chron.stabilized
Build Mean Value Chronology with Stabilized Variance
check.rwl
Check and Validate an rwl Object
ccf.series.rwl
Cross-Correlation between a Series and a Master Chronology
cms
C-Method Standardization
combine.rwl
Combine Tree-Ring Data Sets
co021
Schulman Old Tree No. 1, Mesa Verde
fill.internal.NA
Fill Internal NA
common.interval
Common Interval
insert.ring
Edit a Ring-Width Series
gini.coef
Calculate the Gini Coefficient
interseries.cor
Individual Series Correlation Against a Master Chronology
detrend
Detrend Multiple Ring-Width Series Simultaneously
detrend.series
Detrend a Ring-Width Series
cana157
Twisted Tree Heartrot Hill Standard Chronology
chron
Build Mean Value Chronology
gp.dbh
Ponderosa Pine Stem Diameters and Bark Thickness (
gp.rwl
)
chron.ars
Build ARSTAN Chronology
gp.rwl
Ponderosa Pine Ring Widths from Gus Pearson Natural Area
caps
Cook and Peters Smoothing Spline with User-Specified Rigidity and Frequency Cutoff
plot.rwl
Plotting Rwl Objects
i.detrend.series
Interactively Detrend a Ring-Width Series
i.detrend
Interactively Detrend Multiple Ring-Width Series
po.to.wc
Convert Pith Offset to Wood Completeness
hanning
Hanning Filter
gp.po
Ponderosa Pine Pith Offsets Corresponding to
gp.rwl
read.crn
Read Tucson Format Chronology File
read.compact
Read
DPL
Compact Format Ring Width File
corr.rwl.seg
Compute Correlations between Series
corr.series.seg
Compute Correlation between a Series and a Master Chronology
rasterPlot
Add Raster Elements to Plot
rcs
Regional Curve Standardization
latexDate
Date Conversion to Character in LaTeX Format
latexify
Convert Character Strings for Use with LaTeX
dplR-defunct
Defunct functions in dplR
plot.crs
Plotting crs Objects
plot.crn
Plot a Tree-Ring Chronology
pointer
Calculates Pointer Years from a Group of Ring-Width Series
powt
Power Transformation of Tree-Ring Data
glk
Calculate Gleichläufigkeit
pass.filt
Low-pass, high-pass, band-pass, and stop-pass filtering
gp.d2pith
Ponderosa Pine Distance to Pith Corresponding to
gp.rwl
nm046
Los Alamos Tree Ring Widths
dplR-package
Dendrochronology Program Library in
R
net
Calculate NET
rwl.stats
Calculate Descriptive Summary Statistics on Ring-Width Series
morlet
Perform a Continuous Morlet Wavelet Transform
read.rwl
Read Ring Width File
rwl.report
Do some reporting on a RWL object
read.sheet
Read Ring Widths from a Spreadsheet File
read.ids
Read Site-Tree-Core
ID
s
read.fh
Read Heidelberg Format Ring Width File
read.tucson.legacy
Read Tucson Format Ring Width File (Legacy Reader)
redfit
Red-Noise Spectra of Time-Series
series.rwl.plot
Plot Series and a Master
sss
Subsample Signal Strength
ssf
Simple Signal Free Standardization
sens1
Calculate Mean Sensitivity
rwi.stats.running
(Running Window) Statistics on Detrended Ring-Width Series
rwl.check
Check the integrity of a RWL object or a Tucson file
sgc
Synchronous Growth Changes
print.redfit
Printing Redfit Results
strip.rwl
Chronology Stripping by
EPS
tbrm
Calculate Tukey's Biweight Robust Mean
sea
Superposed Epoch Analysis
seg.plot
Segment Plot
treeMean
Calculate mean across cores in a tree
time.rwl
Retrieve or set the time values for rwl and crn objects
print.rwl.report
Do some reporting on a RWL object
sens2
Calculate Mean Sensitivity on Series with a Trend
tridas.vocabulary
Browse and Check Standard TRiDaS Vocabulary
window.rwl
Take a Span of Years
wc.to.po
Convert Wood Completeness to Pith Offset
read.tridas
Read Tree Ring Data Standard (TRiDaS) File
read.tucson
Read Tucson Format Ring Width File
uuid.gen
UUID
Generator
skel.plot
Skeleton Plot
xdate.report
COFECHA-Style Crossdating Report
write.rwl
Write Ring Width File
xdate.floater
Crossdate an undated series
write.crn
Write Tucson Format Chronology File
wa082
Hurricane Ridge, Pacific silver fir
wavelet.plot
Plot a Continuous Wavelet Transform
xskel.ccf.plot
Skeleton Plot for Series and Master with Cross Correlation
spag.plot
Spaghetti Plot
write.tridas
Write Tree Ring Data Standard (TRiDaS) file
write.compact
Write
DPL
Compact Format Ring Width File
write.tucson
Write Tucson Format Chronology File
write.sheet
Write Ring Widths to a Spreadsheet File
xskel.plot
Skeleton Plot for Series and Master
zof.rwl
European Beech Ring Widths from Zofingen, Switzerland
zof.anc
Ancillary Data Corresponding to
zof.rwl