biomarker               Biomarker data
bootstrap_propen        Calculate bootstrap CI for treatment effect
                        estimate
calc_std_diff           Calculate standardized difference
clinical                Clinical data
expected_feature_diff   Expected number of not optimally balanced
                        features as defined by a threshold
forest_bygroup          Forest plot: colored by groups
ipw_strata              Inverse Probability weighting of strata (two or
                        more strata, survival or binary endpoint)
km_plot_weight          Weighted KM plot
ps_match_strata         Propensity Score Matching of strata (two or
                        more classes, survival or binary endpoint)
std_diff                Compare weighted and unweighted (naive
                        analysis) standardized difference
std_diff_plot           Compare weighted and unweighted (naive
                        analysis) standardized difference in plot
