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dplR (version 1.7.4)

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

4,532

Version

1.7.4

License

GPL (>= 2)

Issues

0

Pull Requests

0

Stars

1

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Maintainer

Andy Bunn

Last Published

June 23rd, 2022

Functions in dplR (1.7.4)

as.rwl

as.rwl
ccf.series.rwl

Cross-Correlation between a Series and a Master Chronology
anos1

Rothenburg Tree Ring Widths
caps

Cook and Peters Smoothing Spline with User-Specified Rigidity and Frequency Cutoff
cana157

Twisted Tree Heartrot Hill Standard Chronology
bai.out

Basal Area Increment (Outside In)
ads

Age-Dependent Spline
ca533

Campito Mountain Tree Ring Widths
bai.in

Basal Area Increment (Inside Out)
chron

Build Mean Value Chronology
chron.stabilized

Build Mean Value Chronology with Stabilized Variance
corr.rwl.seg

Compute Correlations between Series
chron.ci

Build Mean Value Chronology with Confidence Intervals
chron.ars

Build ARSTAN Chronology
corr.series.seg

Compute Correlation between a Series and a Master Chronology
common.interval

Common Interval
combine.rwl

Combine Tree-Ring Data Sets
co021

Schulman Old Tree No. 1, Mesa Verde
cms

C-Method Standardization
crn.plot

Plot a Tree-Ring Chronology
fill.internal.NA

Fill Internal NA
glk

Calculate Gleichläufigkeit
dplR-package

Dendrochronology Program Library in R
detrend.series

Detrend a Ring-Width Series
dplR-defunct

Defunct functions in dplR
csv2rwl

Read Ring Width File from CSV
detrend

Detrend Multiple Ring-Width Series Simultaneously
ffcsaps

Smoothing Spline with User-Specified Rigidity and Frequency Cutoff
gini.coef

Calculate the Gini Coefficient
gp.d2pith

Ponderosa Pine Distance to Pith Corresponding to gp.rwl
gp.dbh

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

Ponderosa Pine Ring Widths from Gus Pearson Natural Area
gp.po

Ponderosa Pine Pith Offsets Corresponding to gp.rwl
i.detrend.series

Interactively Detrend a Ring-Width Series
i.detrend

Interactively Detrend Multiple Ring-Width Series
interseries.cor

Individual Series Correlation Against a Master Chronology
insert.ring

Edit a Ring-Width Series
latexDate

Date Conversion to Character in LaTeX Format
latexify

Convert Character Strings for Use with LaTeX
hanning

Hanning Filter
pointer

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

Plotting Rwl Objects
pass.filt

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

Power Transformation of Tree-Ring Data
nm046

Los Alamos Tree Ring Widths
print.redfit

Printing Redfit Results
po.to.wc

Convert Pith Offset to Wood Completeness
morlet

Perform a Continuous Morlet Wavelet Transform
net

Calculate NET
plot.crs

Plotting crs Objects
read.fh

Read Heidelberg Format Ring Width File
rcs

Regional Curve Standardization
read.crn

Read Tucson Format Chronology File
print.rwl.report

Do some reporting on a RWL object
rasterPlot

Add Raster Elements to Plot
read.tucson

Read Tucson Format Ring Width File
read.compact

Read DPL Compact Format Ring Width File
read.tridas

Read Tree Ring Data Standard (TRiDaS) File
sens1

Calculate Mean Sensitivity
sens2

Calculate Mean Sensitivity on Series with a Trend
seg.plot

Segment Plot
sea

Superposed Epoch Analysis
series.rwl.plot

Plot Series and a Master
sgc

Synchronous Growth Changes
read.rwl

Read Ring Width File
read.ids

Read Site-Tree-Core IDs
rwl.report

Do some reporting on a RWL object
rwl.stats

Calculate Descriptive Summary Statistics on Ring-Width Series
ssf

Simple Signal Free Standardization
tridas.vocabulary

Browse and Check Standard TRiDaS Vocabulary
sss

Subsample Signal Strength
strip.rwl

Chronology Stripping by EPS
uuid.gen

UUID Generator
redfit

Red-Noise Spectra of Time-Series
time.rwl

Retrieve or set the time values for rwl and crn objects
rwi.stats.running

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

Calculate Tukey's Biweight Robust Mean
write.crn

Write Tucson Format Chronology File
xdate.floater

Crossdate an undated series
xskel.ccf.plot

Skeleton Plot for Series and Master with Cross Correlation
skel.plot

Skeleton Plot
spag.plot

Spaghetti Plot
treeMean

Calculate mean across cores in a tree
wa082

Hurricane Ridge, Pacific silver fir
wavelet.plot

Plot a Continuous Wavelet Transform
xskel.plot

Skeleton Plot for Series and Master
write.compact

Write DPL Compact Format Ring Width File
wc.to.po

Convert Wood Completeness to Pith Offset
write.rwl

Write Chronology File
write.tridas

Write Tree Ring Data Standard (TRiDaS) file
write.tucson

Write Tucson Format Chronology File