Numerical Calibration of Proxy-Climate Relationships

Bootstrapped response and correlation functions, seasonal correlations and evaluation of reconstruction skills for use in dendroclimatology and dendroecology.


An R package for modelling tree/climate relationships. The package features:

  • static, moving, and evolving response and correlation functions
  • seasonal correlations
  • a "dendro-flavoured" linear model
  • evaluation of reconstruction skills
  • a test for spurious moving correlations
  • nice default plots
library(treeclim)
munich_spruce_calib <- dcc(muc_spruce, muc_clim)
plot(munich_spruce_calib)
skills(munich_spruce_calib)

See the docs and the wiki for details.

Zang, C., and F. Biondi. 2015. treeclim: an R package for the numerical calibration of proxy-climate relationships. Ecography 38:431–436.

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Reference manual

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install.packages("treeclim")

2.0.0 by Christian Zang, a year ago


Browse source code at https://github.com/cran/treeclim


Authors: Christian Zang [aut, cre, cph, trl], Franco Biondi [ctb, cph]


Documentation:   PDF Manual  


GPL-3 license


Imports abind, plyr, ggplot2, lmtest, lmodel2, np, boot

Depends on base, stats, utils, Rcpp

Suggests testthat

Linking to Rcpp, RcppArmadillo


See at CRAN