DATASET GET NUM COLUMNS¶
Counts and returns the number of columns in a given dataset. Use this worker whenever a downstream step needs to know the column width of a dataset at runtime, e.g. for dynamic branching or validation logic.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Dataset | dataset | dataset | — | The input dataset whose column count will be measured; accepts any tabular dataset object — leave empty only if the column count is not yet needed at this workflow stage. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| Number of Columns | num_columns | scalar | Integer scalar representing the total number of columns present in the input dataset. |
Disciplines¶
- data.dataset.transform
- data.statistics
Runnable example¶
A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: /api/workflow/example?id=dataset_get_num_columns
Auto-generated from transformation schema. Worker id: dataset_get_num_columns. Schema hash: 9840a0eb0225. Hand-curated docs in workerexamples/ override this page when present.