.. _auto_curve_replace_y_value:

*REPLACE Y-VALUE AT A GIVEN X*
==============================

Replaces the y-value of a curve at a specified x-coordinate with a new scalar value. Use this worker when you need to correct, override, or pin a single point on an existing curve without altering the rest of the data.

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

Classification: **process**.

Tagged: ``curve``, ``curve transform``, ``point edit``, ``replace``, ``y-value``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curve
     - curve
     - vector
     - —
     - 
     - Input curve (x/y vector pair) whose y-value will be modified; must contain the target x-coordinate.
   * - X-Value
     - x-value
     - scalar
     - —
     - 
     - The x-coordinate at which the y-value replacement is applied; must exactly match an existing x point on the curve.
   * - New Y-Value
     - new_y-value
     - scalar
     - 0
     - 
     - The replacement y-value to assign at the specified x-coordinate; defaults to 0 if left unset.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curve_replace_y_value_output_1
     - curve_replace_y_value_output_1
     - vector
     - Output curve identical to the input curve except that the y-value at the specified x-coordinate has been replaced with the new value.

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

- data.curve.transform

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

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

.. raw:: html

   <hr style="margin-top:2em">
   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>curve_replace_y_value</code>. Schema hash: <code>c09579ede753</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>