Text and data variables
Variables store data for coloring the map or viewing timelines
About computed variables
Generate a variable from other variables or geographic calculations
Creating a data variable
Data variables can store numeric information for each map feature
Creating a text variable
Text variables can store an arbitrary string for each map feature
Deleting a variable
Delete an unwanted variable from a data layer
Renaming a variable
Rename a variable directly in the variable table
Assigning a title to a variable
Give a variable a title that will appear as the map's title