Defining derived data
-
Inside a visual that generates a subset of data, select a measure field on a
shelf.
In this example,
sum(population)
is used. -
Click the Right Arrow icon to the right of the field.
-
In the dropdown, click Save Expression.
-
In the Save expression to dataset or as derived data modal
window, under Name, type
POP
. -
Select Calculated field in visual derived data section and click
SAVE.
You can see that in the right navigation under Measures, you have a new entry,
POP
. -
To check the definition of the saved derived data
POP
, click the down arrow to the right of its name, and click View Definition.The Derived Data Definition modal window appears. You can see that the definition includes a parameterized filter for
year
. - Click SAVE to save both the visual and the new derived data definitions.
You can now use Pop
as any other measure.