Intersect

[kbonney]

Summary

• Pulled in updates to SNAP from CIMD project
  • Added new functions to return intersect stats and filter rows by intersection criterea
  • updated intersect to return the fraction of A that is intersected by B
  • updated intersect to improve efficiency
• Changed how intersect handles A and B's indices so that multi-indices can be used
• Changed how background is handled. Since the code now uses the integer index and background is appended to the end of B, sorting always will put BACKGROUND at the end of lists rather than the beginning.

Tests and documentation

Tests have been changed to update the changes in output for intersect. Also tests have been added to test multi-indices with intersect.

TODO

• Decide if we want to support the fraction filtering and stats functions
  • Might be more appropriate to include the code in a tutorial for users to emulate.
• Update docs

Acknowledgement

By contributing to this software project, I acknowledge that I have reviewed the software quality assurance guidelines and that my contributions are submitted under the Revised BSD License.