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| findexact | Build an exact match variable given a matrix of covarites ordered by the user according to their importance. |
| glover | Perfect matching and maximum matching in a convex bipartite graph. |
| nearfine | Minimum-distance near-fine matching. |
| netfine | Optimal near-fine match from a distance matrix. |
| nfmatch | Minimum-distance near-fine matching. |
| nh0506 | Smoking and homocysteine levels in NHANES 2005-2006. |
| optcal | Finds the optimal caliper width. |
| optconstant | Finds the optimal constant. |
| smahal | Creates a robust Mahalanobis distance for matching. |