Add STDEV() aggregate function
#1553
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Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## master #1553 +/- ##
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- Coverage 88.96% 88.96% -0.01%
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Files 366 367 +1
Lines 33256 33328 +72
Branches 3729 3735 +6
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+ Hits 29587 29650 +63
- Misses 2439 2442 +3
- Partials 1230 1236 +6 ☔ View full report in Codecov by Sentry. |
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This PR adds a new aggregate function
STDEV(X)which computes the (sample) standard deviation, such that a user will not have to repetitively typemath:sqrt(sum(math:pow((X - avg(X)), 2)) / (count(*) - 1)). This is not part of the SPARQL standard, but also doesn't cause any conflicts.