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.
county
. This article demonstrates how to use the Alias setting to make the dataset field ctname
conform to this requirement.US State Population - Choropleth Map
visual in edit mode.Under Dimensions, select ctname
and drag it over the Geo shelf on the main part of the screen. Drop to add it to the shelf, to the right of state
field.
Alias the field ctname
as county
, and click Refresh Visual.
The map visual appears.
stname
and drag it over the Filters shelf on the main part of the screen.stname
field, and select Pick values from list. In the Pick values for stname modal window, select California and click Save.
Click Refresh Visual.
Note that the map automatically zooms in to show detail of California.
Click Edit next to the title of the visualization.
US County Population - Choropleth Map
.Above the left navigation bar, click Save.