check_balance |
Check covariate balance of the control and treated groups |
create_dist_matrix |
Create matrix of distances between strata |
generate_constraints |
Generate constraints to encourage covariate balance |
generate_qs |
Calculate desired number of controls per stratum |
nh0506 |
Homocysteine and smoking example data |
nh0506_3groups |
Homocysteine and smoking example data with multiple control groups |
optimize_controls |
Select control units that optimize covariate balance |
stand |
Standardize covariate vector for balance constraint |