.. _auto_definetable_scale_curve_by_parameters:

*SCALE CURVES IN THE TABLE USING A PARAMETER DATASET*
=====================================================

Scales the X and/or Y values of curves stored in a Define Table using per-row scale factors drawn from a Parameter Dataset. Use this worker when you need to apply row-matched, column-driven scaling (or offsetting) to a batch of curves in a single pass.

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

Classification: **process**.

Tagged: ``batch_transform``, ``curve_scaling``, ``define_table``, ``offset``, ``parameters``, ``scale``, ``x_scale``, ``y_scale``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Define Table
     - dt1
     - define_table
     - —
     - 
     - Define Table containing value-and-curve pairs to be scaled; the number of rows must match the number of rows in the Parameter Dataset.
   * - Parameters
     - parameters
     - dataset
     - —
     - 
     - Dataset supplying per-row scale factors; row count must equal the number of rows in the Define Table, and column names must include those specified by x_sf and/or y_sf.
   * - X-Scale Factor Column Name
     - x_sf
     - text
     - —
     - 
     - Name of the column in the Parameter Dataset whose values are used as X-axis scale factors; leave blank to skip X scaling.
   * - Y-Scale Factor Column Name
     - y_sf
     - text
     - —
     - 
     - Name of the column in the Parameter Dataset whose values are used as Y-axis scale factors; leave blank to skip Y scaling.
   * - Type Of Scaling
     - type_of_scaling
     - scalar
     - all
     - 
     - Controls which portion of each curve is scaled: 'all' scales every point, 'offset' offsets to the initial value before scaling, 'initial_peak' scales only points after the first peak, and 'custom' scales after user-supplied threshold values; defaults to 'all'.
   * - Scale After X
     - x_after
     - text
     - —
     - 
     - Values after this value of X will be scaled. Values per curve can be specified by separating them using commas

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - Define Table with Scaled Curves
     - define_table
     - define_table
     - Define Table with the same structure as the input but with curve X and/or Y values replaced by their scaled counterparts according to the chosen scaling mode.

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

- data.curve.transform
- data.dataset.transform

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

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

.. raw:: html

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>definetable_scale_curve_by_parameters</code>. Schema hash: <code>0926210183c3</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>