.. _auto_curves_rbf_smoothing:

*SMOOTH USING RBF KERNEL*
=========================

Smooths one or more curves using a Radial Basis Function (RBF) kernel, optionally resampling the result to a specified number of points. Use this worker to remove high-frequency noise from time-history or force-displacement curves while preserving the overall shape.

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

Classification: **process**.

Tagged: ``curve``, ``kernel``, ``noise_reduction``, ``rbf``, ``resampling``, ``signal_processing``, ``smoothing``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curves To Be Derived
     - curvestobesmoothed
     - vector
     - —
     - 
     - One or more input curves (vector) to be smoothed; accepts multi-select curve collections — leave empty only if curves are piped in from an upstream worker.
   * - Smoothness
     - smoothness
     - scalar
     - 0.001
     - 
     - RBF smoothness (regularization) parameter controlling the trade-off between fit fidelity and smoothness; smaller values (e.g. 0.001, the default) produce a closer fit while larger values yield heavier smoothing.
   * - Number of Points
     - num_points
     - scalar
     - 100
     - 
     - Number of evenly spaced output points to resample each smoothed curve onto; defaults to 100 — increase for finer resolution or decrease for a coarser representation.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - RBF Smoothed Curves
     - curve_rbfsm_output_1
     - vector
     - RBF-smoothed output curves (vector), resampled to num_points points, with the same x-range as the corresponding input curve.

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

- data.curve.transform
- data.signal_processing

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

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

.. raw:: html

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>curves_rbf_smoothing</code>. Schema hash: <code>bd9b0d87c560</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>