Arcadia Data supports measurement plots over a geographic map, based on latitude and longitude. Bubble maps display up to two measurements simultaneously: as the color of the bubble, and as the relative size of the bubble.
A geographic coordinate map of the United States, based on degrees of latitude
and longitude
, shows a comparison of measurement values across US States.
The following steps extend the work completed in US Zipcode Map with Bubbles,
and demonstrate how to create a map visual on the dataset Income Tax Returns. It
produces maps with bubble marks that correspond to the relative size of the measurement at
each latitude
and longitude
pair.
Before starting this exercise, supplement the Income Tax Returns dataset by
adding data from
zipcode-lat-long.csv into your database, and making a simple joins
between zip_tax_returns_2016.zipcode
and
zipcode_lat_long.zipcode
. See Data Model: Joins.
Income Tax Returns - Zipcode
visual.Zipcode
from the Geo
shelf.Latitude
to the Geo shelf.Longitude
to the
Geo shelf.United Sates
Map View option. See Map View.
Click Refresh Visual.
The map visual appears. You can move the visual (pan), zoom in and out, and see the details in the Tooltips text.
Click (pencil icon) next to the title of the visualization to edit it, and enter the new name.
Income Tax Returns - Lat and Long
.At the top left corner of the Visual Designer, click Save.