Function reference

Everything here is importable from match_stream.

Name	What it is
Matching
match_nn	nearest-neighbor matching: on a score or a multivariate distance, calipers, exact strata
match_kernel	kernel and ridge matching on a score
match_cem	coarsened exact matching
PairDistance	the bandwidth from 1:1 nearest-neighbor distances (kernel matching)
CrossValidation	the cross-validated bandwidth (kernel matching)
Results
MatchSet	nearest-neighbor matches: pairs, weights, counts, balance, effects
KernelSet	kernel or ridge matching: weights, bandwidth, balance, effects
CEMSet	coarsened exact matching: weights and cells, balance, effects
MatchResult	a treatment effect with its standard error (hdfe-stream’s result API)
BalanceTable	balance before and after matching
Utilities
simulate_matching	simulated units with a known treatment effect