.. _auto_dataset_get_column_with_noise:

*DATASET GET COLUMN WITH NOISE*
===============================

Extracts one or more columns from a dataset and adds synthetic Gaussian noise to the values. Use this worker when you need to augment or perturb data for robustness testing, Monte Carlo sampling, or training-set diversification.

When to use
-----------

Classification: **process**.

Tagged: ``augmentation``, ``column_extraction``, ``dataset``, ``noise``, ``perturbation``, ``synthetic_data``.

Inputs
------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20 20 20

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Dataset
     - dataset_1
     - dataset
     - —
     - 
     - Input dataset from which the target column(s) will be extracted; accepts any tabular dataset available in the workflow context.
   * - Column Name
     - column_name
     - scalar
     - —
     - 
     - Name(s) of the column(s) to extract and perturb; supports multiple selections that are dynamically populated from the connected dataset.
   * - Noise Factor
     - noise_factor
     - scalar
     - 20
     - 
     - Controls the amplitude of the injected noise — noise magnitude is inversely proportional to this value (default 20); increase for subtler noise, decrease for stronger perturbation.

Outputs
-------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20

   * - Label
     - ID
     - Type
     - Description
   * - Dataset with Noise
     - dataset_with_noise
     - dataset
     - Tabular dataset containing the extracted column(s) with synthetic noise applied to each value.

Disciplines
-----------

- ai_ml.preprocessing
- data.dataset.transform

Runnable example
----------------

A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: `/api/workflow/example?id=dataset_get_column_with_noise <https://www.d3view.com/api/workflow/example?id=dataset_get_column_with_noise>`_

.. raw:: html

   <hr style="margin-top:2em">
   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>dataset_get_column_with_noise</code>. Schema hash: <code>953604a10470</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>