Time Series Operator¶
The Time Series Operator worker receives one or more time series from upstream workers, applies a user-supplied mathematical expression, and returns the result to the workflow.
Parameters¶
Expression¶
A mathematical expression to evaluate against the named series variables. All basic arithmetic operators are supported, along with the following built-in functions:
| Function | Description |
|---|---|
log(x) |
Natural logarithm of x, element-wise. Returns a scalar if x is a scalar |
exp(x) |
Exponential of all elements in the input list |
sum(x) |
Sum of all elements in the input list |
The return type of the expression depends on the inputs. For example:
a * 2where a is a list → result is a listsum(a) * bwhere a is a list and b is a number → result is a number
Series¶
A list of time series paired with variable names for use in the expression.
| Field | Description |
|---|---|
| Time Series | Select a time series from a previous worker using Upstream Data |
| Variable Name | The name used to reference this series in the Expression field. Accepts String variant |
Click Add Series to include additional time series in the expression. Click Add Scalar Variable to add a scalar input that can also be referenced in the expression.
Result¶
Once the worker finishes successfully, it returns an object containing the expression result. You can check the Output Types article to learn more about result object types.
- Results (list of lists)