Approximately Optimal Fine Balance Matching with Multiple Groups
tools:::Rd_package_title("approxmatch") .
Check covariate balance of a design.
Create approximately optimal matched strata of multiple, at least two,...
Construct the distance structure for the multiple groups.
The is the background function to perform matching using network optim...
Tools for constructing a matched design with multiple comparison groups. Further specifications of refined covariate balance restriction and exact match on covariate can be imposed. Matches are approximately optimal in the sense that the cost of the solution is at most twice the optimal cost, Crama and Spieksma (1992) <doi:10.1016/0377-2217(92)90078-N>, Karmakar, Small and Rosenbaum (2019) <doi:10.1080/10618600.2019.1584900>.