Filter Data by Geographic Area
Within the data Visualization tool, there are several ways to filter data to your specifications. A filter set is simply a subset of a project’s data that any user can create and save. Filter sets are then applied to “data displays,” which are maps, graphs, and summaries you can add to a visualization. Adding or creating your own Area filter allows you to display project data from a defined geographic area. The Creating Filter Sets article covers other filter types, including how to filter by date range and number values.
A simple way to define the geographic area is to draw a circle on the map. This can be done by adding or editing a filter set and clicking Area under + Add filter.
Select Circle as the filter type and zoom into the map area where you want to draw your circle. Then click the point on the map where you would like the center of your circle. Drag your mouse out to encompass the area you would like and click again to finish the circle.
Some projects have multiple filter types within the Area filter. For example, if a project has State Boundaries as an option, you can select +Add filter, choose a state, and click Save. To add another State, repeat the same steps, select a different state, and save.
If no data points show up in the area you selected, be sure to change the selection in the “Match” dropdown menu. “All selected values” will only show data that satisfy both areas selected, while “Any selected values” will show data from either area selected.
Once you have added filter(s) you can save and title your filter set, and the saved filter set can be applied to data displays.
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