When you have created a calculated column, you can edit it from within the expanded
Data in analysis flyout.
You must have at least one
available and the analysis must be in
On the authoring bar, click
Data in analysis and click on the column of interest.
In the expanded flyout, make sure that
Details on selected column
In the expanded flyout, locate the
Expression section and click
Change the expression and click
OK when you are done.
For more information about which types of methods you can use in expressions, see
The calculated column is updated.