Numerical Calibration of Proxy-Climate Relationships

Bootstrapped response and correlation functions, seasonal correlations and evaluation of reconstruction skills for use in dendroclimatology and dendroecology, see Zang and Biondi (2015) .

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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


munich_spruce_calib <- dcc(muc_spruce, muc_clim)

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.


Reference manual

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install.packages("treeclim") by Christian Zang, a year ago

Report a bug at

Browse source code at

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