| chicago_comm | Chicago Community Areas (2010). | 
| clev_pts | Cleveland Home Sales (2015). | 
| commpop | Chicago Population Change (2000-2010). | 
| guerry | Guerry "Moral Statistics" (1830s). | 
| ncovr | Homicides & Socio-Economics (1960-90). | 
| nyc | Rental Housing and Demographics in NYC (2000s), non-spatial. | 
| nyc_sf | Rental Housing and Demographics in NYC (2000s). | 
| ohio_lung | Ohio Lung Cancer Mortality (1960s-80s). | 
| vehicle_pts | Abandoned Vehicles (2016). |