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
serp_sort               Serpentine sort function
srs                     Simple random sampling function
sys                     Systematic Sampling Without Replacement
sys_pps                 Select a systematic PPS sample
