Scripts for using rWPE on simulated and empirical data (in review at MEE)

All scripts use the functions in the scripts below:

functions_pe.R: Functions to calculate permutation entropy (PE) and weighted permutation entropy (WPE) and apply the rWPE test.

functions_pop.R: Functions to run Ricker population simulations.

Main Scripts

sc1_simulations.R: Runs Ricker population simulations and apples rWPE.

sc2_analyse_rogers.R: Applies rWPE to test data published at Rogers et al. (2022) and plots the results.

sc3_analyse_gpdd.R: Applies rWPE to time series from Global Population Dynamics Database and plots the results.

sc4_run_adpe_models.R: Runs state-space models with Adélie Penguin colony counts to estimate population abundance time series while accounting for observation error.

sc5_run_empe_models.R: Runs state-space models with Emperor Penguin colony counts to estimate population abundance time series while accounting for observation error.

sc6_plots_simulations.R: Plots rWPE test results from Ricker population simulations.

sc7_plot_penguins.R: Plots rWPE test results from penguin population time series.