Computation of the Balance - Sample Size Frontier in Matching Methods for Causal Inference

Returns the subset of the data with the minimum imbalance for every possible subset size (N - 1, N - 2, ...), down to the data set with the minimum possible imbalance. Also includes tools for the estimation of causal effects for each subset size, functions for visualization and data export, and functions for calculating model dependence as proposed by Athey and Imbens.