Snapshot Comparison - Trending of a Project Over Time
You can include multiple snapshots of the same project within a workbook in order to run comparisons against a given version of the same project.
To run such an analysis, include the multiple snapshots of the project in a single workbook and then ribbonize by project. This will result in a separate ribbon being created for each of the snapshots. You can then use metric analysis using all three analyzers in the usual way.
Use the Ribbon and Intersection Analyzers to analyze the characteristics of the portfolio.