Continuing Cartogrpahic visualizations via ggplot and now webmapping with leaflet.

This second lab assignment is built with aggregating data from different sources in mind, tied to the zip code field. This reuses the geopackage file made from last weeks lab data read as three sf objects of NYC zip code areas, food retail stores, and health facilities. [Note this assumes a file structure wherein all tables are already stored under a ./data directory].

Some basic spatial data visualization using R.