MedianTracker

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MedianTracker

http://mediantracker.sourceforge.net/
Tracks the overall median of a stream of values "on-line" in reasonably efficient fashion.

MedianTracker supports efficient median queries on and dynamic additions to a list of values. It provides both the lower and upper median of all values seen so far. Any __cmp__()-able object can be tracked, in addition to numeric types. add() takes log(n) time for a tracker with n items; lower_median() and upper_median() run in constant time. Since all values must be stored, memory usage is proportional to the number of values added (O(n)).





Licensing

License

Verified by

Verified on

Notes

License

Expat

Verified by

Kelly Hopkins

Verified on

24 February 2010




Leaders and contributors

Contact(s)Role
John Kleint Maintainer


Resources and communication

AudienceResource typeURI
DeveloperHomepagehttp://sourceforge.net/projects/mediantracker/


Software prerequisites




Entry















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