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dendroTools (version 1.2.14)

Linear and Nonlinear Methods for Analyzing Daily and Monthly Dendroclimatological Data

Description

Provides novel dendroclimatological methods, primarily used by the Tree-ring research community. There are four core functions. The first one is daily_response(), which finds the optimal sequence of days that are related to one or more tree-ring proxy records. Similar function is daily_response_seascorr(), which implements partial correlations in the analysis of daily response functions. For the enthusiast of monthly data, there is monthly_response() function. The last core function is compare_methods(), which effectively compares several linear and nonlinear regression algorithms on the task of climate reconstruction.

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install.packages('dendroTools')

Monthly Downloads

943

Version

1.2.14

License

GPL-3

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Maintainer

Jernej Jevsenak

Last Published

June 3rd, 2025

Functions in dendroTools (1.2.14)

data_TRW_1

Tree-ring width (TRW) data from 2012 - 1961
count_ones

count_ones
data_TRW

Tree-ring width (TRW) example proxy from 1981 - 1757
data_transform

data_transform
critical_r

critical_r
daily_response

daily_response
compare_methods

compare_methods
daily_response_seascorr

daily_response_seascorr
glimpse_daily_data

glimpse_daily_data
dataset_TRW

TRW and mean June - July temperature from Albania
data_MVA

Mean vessel area example proxy from 2012 - 1940
dataset_MVA

MVA and mean April temperature
monthly_response_seascorr

monthly_response_seascorr
monthly_response

monthly_response
swit272

Standardised tree-ring width chronology swit272, Larix decidua Mill.
dataset_MVA_individual

Example of dataset with individual chronologies of MVA and mean April temperature
example_proxies_1

Tree-ring example proxies 1 from 2015 - 1961
example_proxies_individual

Example of dataset with individual chronologies of MVA.
example_dataset_1

Example of dataset as required for compare_methods()
plot_extreme

plot_extreme
swit272_daily_temperatures

Daily temperatures for swit272 chronology
dataset_TRW_complete

The complete dataset of standardized tree-ring chronology from Albania
swit272_daily_precipitation

Daily precipitation for swit272 chronology
round2

round2
plot_heatmap

plot_heatmap
years_to_rownames

Function returns a data frame with row names as years
smooth_matrix

smooth_matrix
round_df

round_df
boot_f_brnn

boot_f_brnn
calculate_metrics

calculate_metrics
KRE_daily_temperatures

Daily mean temperatures for Kredarica (Alps in Slovenia) from 2017 - 1955
LJ_monthly_temperatures

Monthly mean air temperatures for Ljubljana from 2015 - 1900
boot_f_lm

boot_f_lm
boot_f_cor

boot_f_cor
LJ_monthly_precipitation

Monthly sums of precipitation for Ljubljana from 2018 - 1900. Tidy format.
LJ_daily_precipitation

Daily precipitation for Ljubljana from 2017 - 1900
boot_f_pcor

boot_f_pcor
LJ_daily_temperatures

Daily mean temperatures for Ljubljana from 2016 - 1930