A spatial phase transition between neutral and niche communities: R code and model output

R source code for the determination of critical points in the phase transition, the analysis of richness and Shannon diversity of the model, early warnings and the application to Barro Colorado Island fores plot (BCI) . The neutral-niche model C++ program is available at: https://dx.doi.org/10.6084/m9.figshare.969692R Markdown files:I usually run Rmd files chunk by chunk because there are long simulations, and save ".RData" to keep the results. Neutral_steadyState.Rmd: Simulations to determine the time to reach steady stateNeutral_simulCT.Rmd: Simulations to find critical values, and plots H vs Rho vs MigrationNeutral_EarlyWarnings_Smax.Rmd: Early warnings of the critical transition based on Maximun Patch BCIpatchAnalysis.Rmd: Barro Colorado Island analysis you have to obtain the BCI data from http://ctfs.si.edu/webatlas/datasets/bci/Terms%20and%20conditions.htmR FilesNeutral_fun.r: functions used for the analysis and simulationsBCI_fun.r: functions used for the analysis of BCI datapowerlaw.zip: code to fit powerlaws from http://tuvalu.santafe.edu/~aaronc/powerlaws/ (by Cosma Shalizi)Data files.RData are the results of simulations in data.frame formatSimul.zip Output of all simulations.