This dataset includes 4 programs coded in C for simulating the wave of gene advance under diverse systems of mating. Program 1 was used for simulation under unifor density based on Equations (1) and (2) in the main text. Program 2 was used for simulation under uniform density based on Equations (5)-(11).  Program 3 was used for Monte Carlo (MC) simulation under uniform density. Program 4 was used for MC simulation under logistic growth model. Variable and parameter symbols within these programs are self-explanatory. You may simulate different cases by changing parameter settings.