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These functions use the following parameters:
| topic | (Required) See the above description of topic for the comparison functions (eq, gt, and lt). | ||||||||
| interval | (Required) A number expressed as multiples of the duration specified with unit. | ||||||||
| unit | (Required) Can be either:
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| threshold | (Optional) Defines the unsigned threshold by which the value must change within the duration specified by interval and unit. |
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The utility function, recent, returns the most recent value associated with topic, or null, if none is known. The definition of topic is the same as for the the comparison functions functions (eq, gt, lt) described above.
Executing Alarm Conditions
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