Moves data from N Period in the future to current placement. The end of the Time Series will have N number of null values.

Since ShiftLeft moves future data to current placement, you must be careful when using it. Once a new value comes in from the sensor, it might change existing calculated values.

Parameter

Description

Input Data*

Defines the time series data fed into the function. This can be a sensor ID or another function.

PeriodNumber of data intervals considered in the function.

*Input data is optional in most cases. If Info360 detects that the first input is time series data, it will be applied to the function. Otherwise, the current active sensor's data will be used, which is often the case in Reference Charts. 

Example Usage as Expression:

ShiftLeft({@Input},1) - Moves the data from Input to the left by a period of 1.

ShiftLeft({@Fairmont Station Inlet Pressure},3) - Moves the chart data from the Fairmont Station Inlet Pressure sensor to the left by a period of 3.

Example Reference Chart:

In the following example, the chart data from the Fairmont Station Inlet Pressure sensor is moved to the left by a period of 3, as indicated by the orange line, while the original time series is indicated by the blue line. Null values are seen at the end of the orange line due to calculations made by the ShiftLeft function.

For information on setting up custom equations and syntax, please refer to Analytical Functions.