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https://issues.apache.org/jira/browse/BEAM-12550?focusedWorklogId=672400&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-672400
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ASF GitHub Bot logged work on BEAM-12550:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 30/Oct/21 20:32
Start Date: 30/Oct/21 20:32
Worklog Time Spent: 10m
Work Description: codecov[bot] edited a comment on pull request #15809:
URL: https://github.com/apache/beam/pull/15809#issuecomment-955116113
#
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(bed6bee) will **decrease** coverage by `0.23%`.
> The diff coverage is `n/a`.
> :exclamation: Current head a5a0bd2 differs from pull request most recent
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```diff
@@ Coverage Diff @@
## master #15809 +/- ##
==========================================
- Coverage 83.74% 83.50% -0.24%
==========================================
Files 445 445
Lines 60796 61299 +503
==========================================
+ Hits 50914 51189 +275
- Misses 9882 10110 +228
```
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| `94.02% <0.00%> (-2.24%)` | :arrow_down: |
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| `94.04% <0.00%> (-1.25%)` | :arrow_down: |
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[...on/apache\_beam/runners/dataflow/dataflow\_runner.py](https://codecov.io/gh/apache/beam/pull/15809/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=The+Apache+Software+Foundation#diff-c2Rrcy9weXRob24vYXBhY2hlX2JlYW0vcnVubmVycy9kYXRhZmxvdy9kYXRhZmxvd19ydW5uZXIucHk=)
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| `80.00% <0.00%> (-0.36%)` | :arrow_down: |
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| `93.54% <0.00%> (-0.35%)` | :arrow_down: |
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------
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Issue Time Tracking
-------------------
Worklog Id: (was: 672400)
Time Spent: 1h (was: 50m)
> Implement parallelizable skew and kurtosis
> -------------------------------------------
>
> Key: BEAM-12550
> URL: https://issues.apache.org/jira/browse/BEAM-12550
> Project: Beam
> Issue Type: Improvement
> Components: dsl-dataframe
> Reporter: Brian Hulette
> Assignee: Svetak Vihaan Sundhar
> Priority: P3
> Time Spent: 1h
> Remaining Estimate: 0h
>
> skew and kurtosis should be parallelizable/lifftable by using a similar
> [approach as std and
> var|https://github.com/apache/beam/blob/a0f5e932d8a9aa491b16361abdc629b5e9a483f6/sdks/python/apache_beam/dataframe/frames.py#L1307-L1310].
> See
> https://en.wikipedia.org/wiki/Algorithms_for_calculating_variance#Higher-order_statistics
> which has information on extending that approach to calculating the third and
> fourth central moments, needed for skew and kurtosis.
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