Astype  type: as_type

class lumen.transforms.base.Astype(*, dtypes, controls, name)

Astype transforms the type of one or more columns.

---

Parameters

dtypes

type: dict
default: None
Mapping from column name to new type.

---

Methods

Astype.apply(table: DataFrame) → DataFrame

Given a table transform it in some way and return it.

Parameters:

table (DataFrame) – The queried table as a DataFrame.

Returns:

A DataFrame containing the transformed data.

Return type:

DataFrame

Astype.to_spec(context: Dict[str, Any] | None = None) → Dict[str, Any]

Exports the full specification to reconstruct this component.

Return type:

Resolved and instantiated Component object