ESS                     Compute effective sample size of weighted
                        sample
as.weightit             Create a 'weightit' object manually
get_w_from_ps           Compute weights from propensity scores
make_full_rank          Make a design matrix full rank
method_bart             Propensity Score Weighting Using BART
method_cbps             Covariate Balancing Propensity Score Weighting
method_ebal             Entropy Balancing
method_ebcw             Empirical Balancing Calibration Weighting
method_energy           Energy Balancing
method_gbm              Propensity Score Weighting Using Generalized
                        Boosted Models
method_npcbps           Nonparametric Covariate Balancing Propensity
                        Score Weighting
method_optweight        Optimization-Based Weighting
method_ps               Propensity Score Weighting Using Generalized
                        Linear Models
method_super            Propensity Score Weighting Using SuperLearner
method_user             User-Defined Functions for Estimating Weights
ps.cont                 Generalized Propensity Score Estimation using
                        GBM
sbps                    Subgroup Balancing Propensity Score
stop.method             Balance criteria for tuning
summary.weightit        Print and Summarize Output
trim                    Trim Large Weights
weightit                Generate Balancing Weights
weightit.fit            Generate Balancing Weights with Minimal Input
                        Processing
weightitMSM             Generate Balancing Weights for Longitudinal
                        Treatments
