This version of the package has been accepted by the American Journal of Epidemiology (2021). If you find this package is helpful, please consider to cite
Zhong, Y., Kennedy, E.H., Bodnar, L.M., & Naimi, A.I. (Accepted, 2021) AIPW: An R Package for Augmented Inverse Probability Weighted Estimation of Average Causal Effects. American Journal of Epidemiology