AppendixS2: Modelling tutorial

In this example we demonstrate how edge weights can be estimated within an intrinsic conditional autoregressive (ICAR) model by incorporating resistance covariates into the off-diagonal elements of the precision matrix. The example is based on genetic simulations generated using the PopGenReport package and implemented using R statistical software version 3.4.4. Resistance distances are generated using the gdistance package and the models are fit using the rwc package; all of which are available on the CRAN website (https://cran.r-project.org/). R code has been provided in AppendixS2.pdf and in dataS1.zip so that the methods are more accessible to readers, who can recreate the example provided in the manuscript and apply these methods to their own landscape genetic datasets.