.. _auto_keyvalue_scale_offset:

*SCALE THE VALUES FOR KEYVALUE*
===============================

Applies a linear scale-and-offset transformation to all numeric values in a key-value pair collection, producing a new key-value output. Use this worker to convert units or normalize scalar responses inline within a workflow (result = value × scale + offset).

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

Classification: **process**.

Tagged: ``keyvalue``, ``linear_transform``, ``offset``, ``scalar``, ``scale``, ``unit_conversion``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Response To Extract From
     - responsetoextractfrom
     - keyvalue
     - —
     - 
     - Input key-value pair collection whose numeric values will be scaled and offset; accepts any keyvalue response object from an upstream extraction or response worker.
   * - Scale
     - scale
     - scalar
     - 1.0
     - 
     - Multiplicative scale factor applied to each value (dimensionless); default is 1.0 (no scaling).
   * - Offset
     - offset
     - scalar
     - 0.0
     - 
     - Additive offset applied to each value after scaling (same units as the scaled result); default is 0.0 (no offset).
   * - Format
     - format
     - scalar
     - %s
     - 
     - Printf-style format string controlling how transformed values are serialized (e.g. '%.3f' for 3 decimal places); default '%s' preserves the value as-is.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - keyvalue_scale_offset_output_1
     - keyvalue_scale_offset_output_1
     - keyvalue
     - Key-value pair collection containing the same keys as the input but with each numeric value replaced by (value × scale + offset).

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

- data.curve.transform
- data.units

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

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

.. raw:: html

   <hr style="margin-top:2em">
   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>keyvalue_scale_offset</code>. Schema hash: <code>a6278231a2cc</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>