.. _auto_string_max:

*STRING MAX*
============

Parses a comma-separated string of numeric values and returns the maximum value. Use this worker whenever you need to reduce a CSV scalar string to its single largest element within a workflow.

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

Classification: **process**.

Tagged: ``csv``, ``math``, ``max``, ``reduce``, ``scalar``, ``string``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - CSV String
     - string
     - scalar
     - —
     - ✓
     - Comma-separated list of numeric values to evaluate (e.g. '1,2,3'); also accepts a pre-split PHP array. Required — no default is applied.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - Max Value
     - string_max
     - scalar
     - Single scalar numeric value representing the maximum element found in the input CSV string.

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

- data.curve.transform
- data.statistics

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

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

.. raw:: html

   <hr style="margin-top:2em">
   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>string_max</code>. Schema hash: <code>8c669f5da4ba</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>