|
@@ -46,8 +46,6 @@ The above aggregation computes the grades statistics over all documents. The agg
|
|
|
The name of the aggregation (`grades_stats` above) also serves as the key by which the aggregation result can be retrieved from the returned response.
|
|
|
|
|
|
==== Standard Deviation Bounds
|
|
|
-added[1.4.3]
|
|
|
-
|
|
|
By default, the `extended_stats` metric will return an object called `std_deviation_bounds`, which provides an interval of plus/minus two standard
|
|
|
deviations from the mean. This can be a useful way to visualize variance of your data. If you want a different boundary, for example
|
|
|
three standard deviations, you can set `sigma` in the request:
|
|
@@ -65,7 +63,7 @@ three standard deviations, you can set `sigma` in the request:
|
|
|
}
|
|
|
}
|
|
|
--------------------------------------------------
|
|
|
-<1> `sigma` controls how many standard deviations +/- from the mean should be displayed added[1.4.3]
|
|
|
+<1> `sigma` controls how many standard deviations +/- from the mean should be displayed
|
|
|
|
|
|
`sigma` can be any non-negative double, meaning you can request non-integer values such as `1.5`. A value of `0` is valid, but will simply
|
|
|
return the average for both `upper` and `lower` bounds.
|