.. _auto_dataset_columns_to_curves:

*DATASET COLUMNS TO CURVES*
===========================

Combines paired X-column and Y-column groups in a dataset into a single new curve column, using column-name prefixes to identify matching pairs. Use this worker when tabular data encodes curve point-sets as separate X/Y columns and you need a proper curve-typed column for downstream analysis.

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

Classification: **process**.

Tagged: ``column_transform``, ``columns_to_curves``, ``curve``, ``dataset``, ``process``, ``tabular``, ``x_prefix``, ``y_prefix``.

Inputs
------

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   :header-rows: 1
   :widths: 20 20 20 20 20 20

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Dataset With Columns
     - dataset_1
     - dataset
     - —
     - 
     - Input dataset containing the raw tabular data with separate X-point and Y-point columns that will be paired and collapsed into curve objects.
   * - New Column Name
     - new_col_name
     - scalar
     - —
     - 
     - Name for the new curve column that will be appended to the dataset (e.g. 'stress_strain_curve'); must be a unique column name not already present in the dataset.
   * - X Column Prefix
     - x_point_column
     - scalar
     - —
     - 
     - Column-name prefix that identifies all X-point columns in the dataset (e.g. 'x_' matches columns 'x_0', 'x_1', …); used to locate and order X values for each curve.
   * - Y Column Prefix
     - y_point_column
     - scalar
     - —
     - 
     - Column-name prefix that identifies all Y-point columns in the dataset (e.g. 'y_' matches columns 'y_0', 'y_1', …); paired positionally with the X columns to construct each curve.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - dataset_curve_to_columns_output_1
     - dataset_curve_to_columns_output_1
     - dataset
     - Output dataset identical to the input but augmented with the new curve-typed column, where each row contains a curve object built from the corresponding X/Y column values.

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

- data.curve.transform
- 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_columns_to_curves <https://www.d3view.com/api/workflow/example?id=dataset_columns_to_curves>`_

.. 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_columns_to_curves</code>. Schema hash: <code>7757fa7ee810</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>