psw                     Propensity score weighting
psw.aug                 Propensity score weighting with augmented
                        estimation
psw.balance             Balance checking using standardized mean
                        difference
psw.mirror.hist         Mirror histogram
psw.spec.test           Propensity score model specification test
psw.wt                  Propensity score weighting estimator
test_data               Test data
