Advanced functions are pre-defined functions or calculations in the Conga Contracts (formerly Novatus) repository that can be applied to the fields in a standard Analytics Report. However, advanced functions are not available for cross-tab reports.
There are three major types of functions: Analysis, Statistical, and Text. The Analysis functions are most commonly used, and examples are provided for Accumulated Total, Division of Columns, and Rankings. See Advanced Functions for a full list of functions and the available calculations for each function.
When applying functions to a report field, you often need two copies of the field in your report - one to display the original values and one to display the results of the applied function.