.. _auto_curves_selector_by_lookup:

*SELECT CURVES BY CURVE LOOKUP*
===============================

Filters a collection of curves by computing a scalar lookup metric (e.g. Ymax, integral, slope) on each curve and selecting those that meet a min/max threshold criterion. Use this worker when you need to programmatically subset a large curve set based on a computed curve statistic.

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

Classification: **process**.

Tagged: ``batch``, ``curve_selection``, ``filter``, ``integral``, ``lookup``, ``scalar_metric``, ``ymax``, ``ymin``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curves
     - curves
     - vector
     - —
     - ✓
     - Collection of one or more input curves (vector of curve objects) to be evaluated and filtered; at least one curve must be provided.
   * - Lookuptype
     - lookuptype
     - string
     - ymax
     - 
     - Scalar metric to compute on each curve for comparison — options include statistical measures (ymax, ymin, xmin, xmax, yavg, ymedian, ysum, yrange, integral, std_dev_mean_ratio), positional values (yfirst, ylast, xfirst, xlast, xatymax, xatymin, xatyavg), absolute-value variants (absy, absx, absymax, absymax_with_sign, absymin, absxmax, absxmin), and derived metrics (num_points, slope_before_zero, max_from_last); defaults to 'ymax'.
   * - Format
     - min_max
     - string
     - max
     - 
     - Numeric threshold range [min, max] used to select curves whose computed lookup value falls within the specified bounds; curves outside this range are excluded.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curves_selector_by_lookup_output_1
     - curves_selector_by_lookup_output_1
     - vetor
     - Filtered subset of the input curves (vector of curve objects) whose computed lookup metric value falls within the specified min/max threshold range.

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

- data.curve.pair
- 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=curves_selector_by_lookup <https://www.d3view.com/api/workflow/example?id=curves_selector_by_lookup>`_

.. raw:: html

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>curves_selector_by_lookup</code>. Schema hash: <code>ca77e300bbbe</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>