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Commit e957cd77 authored by Björn Rabenstein's avatar Björn Rabenstein Committed by GitHub
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Merge pull request #498 from brian-brazil/stddev 

Document stddev/stdvar_over_time
parents 40f51855 2f06cdbb
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content/docs/querying/functions.md
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...@@ -326,6 +326,8 @@ over time and return an instant vector with per-series aggregation results: ...@@ -326,6 +326,8 @@ over time and return an instant vector with per-series aggregation results:
* `sum_over_time(range-vector)`: the sum of all values in the specified interval. * `sum_over_time(range-vector)`: the sum of all values in the specified interval.
* `count_over_time(range-vector)`: the count of all values in the specified interval. * `count_over_time(range-vector)`: the count of all values in the specified interval.
* `quantile_over_time(scalar, range-vector)`: the φ-quantile (0 ≤ φ ≤ 1) of the values in the specified interval. * `quantile_over_time(scalar, range-vector)`: the φ-quantile (0 ≤ φ ≤ 1) of the values in the specified interval.
* `stddev_over_time(range-vector)`: the population standard deviation of the values in the specified interval.
* `stdvar_over_time(range-vector)`: the population standard variance of the values in the specified interval.
Note that all values in the specified interval have the same weight in the Note that all values in the specified interval have the same weight in the
aggregation even if the values are not equally spaced throughout the interval. aggregation even if the values are not equally spaced throughout the interval.
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