| allocate | Sample allocation |
| chromy_pps | Select a sequential PPS sample |
| county_2023 | American Community Survey (ACS) 5-Year Estimates, 2023 for counties |
| ipeds | IPEDS - Post secondary education institutions, Fall 2023 |
| puma_2023 | American Community Survey (ACS) 5-Year Estimates, 2023 for Public Use Microdata Areas (PUMAs) |
| select_sample | Sample selection function |
| seq_pps | Select a sequential PPS sample |
| serp_sort | Serpentine sort function |
| srs | Simple random sampling function |
| sys | Systematic Sampling Without Replacement |
| sys_pps | Select a systematic PPS sample |