.. _auto_curves_rename_by_index:

*RENAME CURVE BY INDEX*
=======================

Renames a single curve within a collection by its positional index, replacing the existing name with a user-supplied string. Use this worker when you need to relabel a specific curve in a multi-curve set without altering the other curves.

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

Classification: **process**.

Tagged: ``curve``, ``index``, ``label``, ``rename``, ``transform``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curves
     - curves
     - vector
     - —
     - 
     - Collection of input curves (vector) from which one curve will be renamed; supply all curves that belong to the set, including the target.
   * - Index
     - index
     - string
     - —
     - 
     - Zero- or one-based positional index (string) identifying which curve in the collection to rename; e.g. "0" for the first curve.
   * - New Name
     - new_name
     - string
     - —
     - 
     - Replacement label (string) to assign to the curve at the specified index; leave empty to keep the existing name unchanged.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curves_rename_by_index_output_1
     - curves_rename_by_index_output_1
     - vector
     - Full curve collection returned with the target curve renamed; all other curves are passed through unmodified.

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

- data.curve.pair

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

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

.. raw:: html

   <hr style="margin-top:2em">
   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>curves_rename_by_index</code>. Schema hash: <code>15412432b138</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>