| getSummary | Summary tables |
| matchBalance | Match balance |
| matchCount | Successful matches for each replacement group |
| matchFreq | Match frequency |
| prepDF | Prepare nested dataset |
| rawCCD | Common Core of Data (CCD) data for California schools (2017-18). |
| selectMatch | Two-level sample selection |
| subUnitBalance | Sub-unit balance |
| unitLovePlot | Original units balance |