.. _auto_curve_scaley_by_conditionx:

*SCALE THE Y-VALUES BASED ON CONDITIONS OF THE X VALUE*
=======================================================

Scales the y-values of a curve selectively, applying a multiplicative scale factor only to points where the x-value satisfies a specified condition (lt, lte, eq, gte, gt) against a target x-value. Use this worker when you need to modify a subset of curve y-values based on an x-domain condition rather than scaling the entire curve uniformly.

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

Classification: **process**.

Tagged: ``conditional``, ``curve``, ``filter``, ``scale``, ``transform``, ``x-condition``, ``y-scale``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curve To Be Scaled
     - curvetobescaled
     - vector
     - —
     - 
     - Input curve (x/y vector pair) whose y-values will be conditionally scaled; accepts any unitless or engineering-unit curve.
   * - Y Scale Value
     - y_scalevalue
     - scalar
     - 1
     - 
     - Multiplicative scale factor applied to y-values at points that satisfy the x condition; dimensionless scalar, default 1 (no scaling).
   * - Condition For X
     - conditionfor_x
     - scalar
     - eq
     - 
     - Comparison operator used to test each x-value against the target: 'lt' (<), 'lte' (≤), 'eq' (=), 'gte' (≥), or 'gt' (>); default is 'eq'.
   * - Target Value For X
     - target_valuefor_x
     - scalar
     - 0
     - 
     - Reference x-value against which the condition is evaluated; y-values at matching x-points are scaled by y_scalevalue; default is 0.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curve_scaley_by_conditionx_output_1
     - curve_scaley_by_conditionx_output_1
     - vector
     - Output curve identical to the input except that y-values at x-points satisfying the condition have been multiplied by the specified scale factor.

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

.. raw:: html

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>curve_scaley_by_conditionx</code>. Schema hash: <code>a59af75fb507</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>