Calculates a moving rate of change for a set of time series data.
It is calculated as follows:
Rate of Change = (Current value - Value N period ago) / Value N period ago
Syntax
roc(TimeSeries, Period)
| Parameter | Description |
|---|---|
| TimeSeries | A node with time series data. |
| Period | The number of data intervals considered in the function. |
Example expression
roc(@TankSensor, 2): If the interval is set to daily, this expression will calculate the daily rate of change.
Example chart
