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fix typo on outliersk() doc (#758)

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John Belmonte 2020-09-11 06:55:53 +09:00 committed by Aliaksandr Valialkin
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docs/MetricsQL.md
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@ -126,7 +126,7 @@ This functionality can be tried at [an editable Grafana dashboard](http://play-g
for the given `phi` in the range `[0..1]`. for the given `phi` in the range `[0..1]`.
- `last_over_time(m[d])` - returns the last value for `m` on the time range `d`. - `last_over_time(m[d])` - returns the last value for `m` on the time range `d`.
- `first_over_time(m[d])` - returns the first value for `m` on the time range `d`. - `first_over_time(m[d])` - returns the first value for `m` on the time range `d`.
- `outliersk(N, q) by (group)` - returns up to `N` outlier time series for `q` in every `group`. Outlier time series have the highest deviation from the `median(m)`. - `outliersk(N, q) by (group)` - returns up to `N` outlier time series for `q` in every `group`. Outlier time series have the highest deviation from the `median(q)`.
This aggregate function is useful to detect anomalies across groups of similar time series. This aggregate function is useful to detect anomalies across groups of similar time series.
- `ascent_over_time(m[d])` - returns the sum of positive deltas between adjancent data points in `m` over `d`. Useful for tracking height gains in GPS track. - `ascent_over_time(m[d])` - returns the sum of positive deltas between adjancent data points in `m` over `d`. Useful for tracking height gains in GPS track.
- `descent_over_time(m[d])` - returns the absolute sum of negative deltas between adjancent data points in `m` over `d`. Useful for tracking height loss in GPS track. - `descent_over_time(m[d])` - returns the absolute sum of negative deltas between adjancent data points in `m` over `d`. Useful for tracking height loss in GPS track.