.. _auto_curve_cumulative:

*COMPUTE THE CUMULATIVE SUM*
============================

Computes the cumulative sum of a curve's Y-values, producing a new curve where each point represents the running total up to that position. Use this worker to integrate a time-history signal or accumulate discrete values along the X-axis.

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

Classification: **process**.

Tagged: ``cumsum``, ``cumulative``, ``curve``, ``integration``, ``running_total``, ``transform``.

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-values will be cumulatively summed; typically a time-history or discrete signal — leave unconnected only if the cumulative output is not needed.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curve_cumulative_output_1
     - curve_cumulative_output_1
     - vector
     - Output curve with the same X-values as the input and Y-values replaced by the running cumulative sum of the input Y-values.

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

.. 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_cumulative</code>. Schema hash: <code>b93b532f80e7</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>