In Arcadia Data, you can plot measurements, as areas, over US County regions.
A county map of the United States shows a comparison of measurement values across US States.
The following steps extend the work completed in State Map, Choropleth, and demonstrate how to create a map visual on the dataset US County Populations
[data source samples.us_counties
]. It produces colored regions for the measurements that correspond to the county
field.
US State Population - Choropleth Map
visual that we developed in the
article State Map, Choropleth.Under Dimensions, select ctyname
and add it to
the Geo shelf.
Click on the field to open the Field Properties menu, expand the Change Type option, and select the Geo Type County.
Alias the field ctyname
as County
; see Alias.
Click Refresh Visual.
The map visual appears.
[Optional] Under Dimensions, select stname
and
add it to the Filters shelf. When
the Filter for stname window modal appears, select
California in the Values tab, and click
Apply.
Again, click Refresh Visual.
Note that the map automatically zooms in to show detail of California.
Click (pencil icon) next to the title of the visualization to edit it, and enter the new name.
US County Population - Choropleth Map
.At the top left corner of the Visual Designer, click Save.