ConstString / New Layer

Create a new column filled with a constant string value. Similar to pandas.Series with a string constant or dplyr's mutate with constant text. Useful for adding categorical labels, metadata, or constant text identifiers to your dataset.

Table

Value

string

The string Value to fill the column with. Common uses include:

Category labels (e.g., Active, Pending)
Group identifiers (e.g., Control Group, Test Group)
Constant tags or annotations
Default text values

AsColumn

name

Name for the new column. If not provided, the system generates a unique name. If AsColumn matches an existing column, the existing column is replaced. The name should follow valid column naming conventions.