Counts the number of times a particular value occurred.
Syntax
countvalue(TimeSeries, Period, Value, Operator)
| Parameter | Description |
|---|---|
|
TimeSeries |
A node with time series data or another function. |
|
Period |
The number of intervals considered in the function. |
|
Value |
Sensor value (i.e., pressure, flow rate, etc.) |
|
Operator |
=, >, <, <=, >= Note: These must be inserted inside single quotes: '=', '>', etc.
|
Example expression
countvalue(@node, 24, 15, '>'): If the Interval is set to hourly, this expression counts the number of hours during the past day that the sensor measured a value greater than 15.
Example chart:
The chart below demonstrates the following expression: countvalue(@FA_level, 24, 15, '<')
It counts the number of times the level sensor dropped below 15 using a 24-hour moving window and an hourly interval.
In this example the TimeSpent function is also shown with an hourly interval set.
