.. _auto_curve_cycle_stats:

*CURVE STATS*
=============

Computes per-cycle statistics (e.g., min, max, mean, amplitude) for a cyclic/time-history curve. Optionally scales the axes before analysis and can skip negative x-values. Use this worker to characterise fatigue-relevant load cycles or any periodic signal.

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

Classification: **process**.

Tagged: ``curve``, ``cycle``, ``cyclic``, ``fatigue``, ``periodic``, ``scale``, ``stats``, ``time-history``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curve In
     - curve_in
     - vector
     - —
     - 
     - Input time-history or cyclic curve (x/y vector pairs) whose per-cycle statistics will be computed; leave unconnected only if the curve is supplied by an upstream wire.
   * - Scale X
     - scale_x
     - scalar
     - 1
     - 
     - Multiplicative scale factor applied to the x-axis (e.g., time units conversion) before statistics are computed; default 1 (no scaling).
   * - Scale Y
     - scale_y
     - scalar
     - 1
     - 
     - Multiplicative scale factor applied to the y-axis (e.g., force or stress units conversion) before statistics are computed; default 1 (no scaling).
   * - Skip Negative
     - ignore_negative_x
     - scalar
     - yes
     - 
     - Set to 'yes' (default) to discard data points with negative x-values after scaling before computing cycle statistics; set to 'no' to include the full curve.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curve_cycle_stats_output_1
     - curve_cycle_stats_output_1
     - dataset
     - Dataset table containing per-cycle statistical measures (e.g., min, max, mean, range, amplitude) derived from the input curve after scaling and optional negative-x filtering.

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

- data.curve.transform
- data.statistics
- engineering.durability

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

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

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>curve_cycle_stats</code>. Schema hash: <code>8aa9a6e2377c</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
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