R code for generation of simulated population-size estimation data, estimation of population size and summary of results for a simulation study comparing the performance of selection of conventional loglinear models, Bayesian model averaging and Bayesian nonparametric latent-class model estimation of population size from multiple lists. This code and estimates were used in the research reported in a manuscript titled "Comparative Performance of Methods for Population-Size Estimation Based on Multiple Lists" and are intended as a static snapshot documenting that work.