analytics.outlier.day.threshold
Background
This option specifies the level of certainty required before a query triggers a day trend alert. The value is expressed as a confidence value between 1 (report everything) and 0 (report nothing).
Setting the key
Set this configuration key in the search package or data source configuration.
Use the configuration key editor to add or edit the analytics.outlier.day.threshold key, and set the value. This can be set to any valid Double value.