.. _auto_curve_to_dataset:

*CONVERT A SINGLE CURVE INTO A DATASET*
=======================================

Converts a single curve into a tabular dataset in either XY or Matrix format. In XY mode the curve's x- and y-arrays become two columns; in Matrix mode the y-values are reshaped into a user-defined number of columns. Use this worker when downstream nodes require a dataset rather than a curve object.

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

Classification: **process**.

Tagged: ``conversion``, ``curve``, ``dataset``, ``matrix``, ``reshape``, ``transform``, ``xy``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curve
     - curve
     - vector
     - —
     - 
     - The source curve (x/y vector pair) to be converted into a dataset; accepts any d3VIEW curve object.
   * - type
     - type
     - list
     - xy
     - 
     - Output layout: 'xy' produces a two-column dataset with one column per axis; 'matrix' reshapes the curve y-values into multiple columns. Defaults to 'xy'.
   * - Number Of  Columns For Matrix
     - matrix_cols
     - scalar
     - 2
     - 
     - Number of columns to use when splitting curve y-values in Matrix mode (integer ≥ 1); ignored when type is 'xy'. Defaults to 2.
   * - Matrix Col Prefix
     - matrix_col_prefix
     - scalar
     - col_
     - 
     - String prefix applied to each generated column name in Matrix mode (e.g. 'col_' yields col_0, col_1, …); ignored when type is 'xy'. Defaults to 'col_'.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - Matrix
     - curve_to_dataset_output_1
     - dataset
     - Tabular dataset produced from the input curve; contains two columns (x, y) in XY mode, or N columns of reshaped y-values in Matrix mode.

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=curve_to_dataset <https://www.d3view.com/api/workflow/example?id=curve_to_dataset>`_

.. raw:: html

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   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>curve_to_dataset</code>. Schema hash: <code>8c3650f162b9</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>