.. _auto_curves_nmad:

*COMPUTE NORMALIZED MEAN ABSOLUTE DIFFERENCE (NMAD) BETWEEN TWO SETS OF CURVES*
===============================================================================

Computes the Normalized Mean Absolute Difference (NMAD) between two sets of curves, quantifying their pointwise deviation as a single normalized scalar. Use this worker when you need a dimensionless, scale-independent distance metric to compare simulation or test curves against a reference set.

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

Classification: **process**.

Tagged: ``curve_comparison``, ``curve_distance``, ``nmad``, ``normalized_mean_absolute_difference``, ``scalar_metric``, ``transformations``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Reference Curves
     - ref_curves
     - vector
     - —
     - 
     - One or more reference (baseline) curves against which the comparison curves are measured; accepts multi-select vector inputs in d3VIEW curve format.
   * - Compare Curves
     - compare_curves
     - vector
     - —
     - 
     - One or more curves to compare against the reference set; must share the same x-axis domain as the reference curves for meaningful NMAD computation.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - NMAD
     - curves_nmad
     - scalar
     - Dimensionless scalar NMAD value representing the normalized mean absolute difference between the reference and comparison curve sets; a value of 0 indicates perfect agreement.

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

- data.correlation
- data.curve.pair
- data.statistics

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

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

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>curves_nmad</code>. Schema hash: <code>ebf5261d49fe</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
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