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From "David Whiting (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CRUNCH-484) Add library features from spotify/crunch-lib into crunch-core
Date Thu, 18 Dec 2014 13:53:13 GMT
David Whiting created CRUNCH-484:
------------------------------------

             Summary: Add library features from spotify/crunch-lib into crunch-core
                 Key: CRUNCH-484
                 URL: https://issues.apache.org/jira/browse/CRUNCH-484
             Project: Crunch
          Issue Type: Improvement
          Components: Core
            Reporter: David Whiting
            Assignee: Josh Wills


As suggested by Josh, I've patched the more generally-applicable stuff from https://github.com/spotify/crunch-lib
into org.apache.crunch.lib

Open questions:
- Does all of this belong here?
- Should Percentiles be renamed to Quantiles, given that you actually just specify a 0.0-1.0
range? Quantiles is more accurate, but people are more likely to search for Percentiles.
- Would the DoFns.detach(...) functionality be better implemented as a DetachingReduceFn base
class rather than a wrap-and-delegate?



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