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ASF GitHub Bot commented on APEXMALHAR-2094:
--------------------------------------------
Github user sandeep-n commented on a diff in the pull request:
https://github.com/apache/incubator-apex-malhar/pull/286#discussion_r64121488
--- Diff: library/pom.xml ---
@@ -325,6 +325,11 @@
<version>7.0.6</version>
</dependency>
<dependency>
+ <groupId>com.yahoo.datasketches</groupId>
--- End diff --
@tweise The DataSketches library implements a number of streaming/sketch
algorithms including hyperloglog and heavy hitters / frequent items and a
"theta sketch" framework that will allow set operations on multiple streams,
all of which I'm hoping to build operators for.
> Quantiles sketch operator
> -------------------------
>
> Key: APEXMALHAR-2094
> URL: https://issues.apache.org/jira/browse/APEXMALHAR-2094
> Project: Apache Apex Malhar
> Issue Type: New Feature
> Reporter: Sandeep Narayanaswami
> Assignee: Sandeep Narayanaswami
> Priority: Minor
>
> An operator that "sketches" in an online fashion the probability distribution
> of an input (numeric) data stream, enabling computation of quantiles and
> cumulative distribution functions.
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