plot.rifdecomp          Plot a density-free RIF decomposition
rif_decompose           Two-sample RIF-Oaxaca-Blinder decomposition of
                        unconditional expectiles
rif_expectile           Closed-form recentered influence function for
                        the expectile
rif_expectile_fit       Sample expectile via iteratively reweighted
                        least squares
rif_expectile_grid      Vectorized sample expectiles over a grid of
                        levels
simulate_income_data    Simulate two-group income data for examples and
                        testing
wage_gap_sim            Simulated two-wave income data
