Data and code from: Pest host expansion as a scale-free stepwise process across the host phylogeny

<b>Abstract</b><br/><p>This dataset includes data and code for estimation and analysis of the phylogenetic constraint of pests and pathogens on North American tree genera. It contains two data .csv files with information about known pest host genera and pest nativity to North America originating from Wang et al. 2022, and four R files that download necessary files, run simulations and machine learning models, and plot figures, which should be run in order. These data and files are published with a CC0 license and are available for reuse.</p>