QUALITY_COUNT
=============

Python object: ``phenotypic.schema._quality_count.QUALITY_COUNT``

Measurement info for the expected-vs-detected colony count QC check.

Carries the per-group colony counts compared by the count quality check:
how many colonies were detected on the plate versus how many the metadata
declared, and their signed difference. Negative ``Delta`` values flag
missing colonies (e.g. failed spots, dropouts) while positive values flag
spurious detections (e.g. fragmentation, artifacts).

.. list-table:: Category: **QC_Count**
   :header-rows: 1

   * - Column label
     - Description
     - Type
   * - ``QC_Count_Detected``
     - Detected colony count in the group.
     - :bdg-ref-secondary:`Quality <measurement-classification>`
   * - ``QC_Count_Expected``
     - Expected colony count from the metadata frame.
     - :bdg-ref-secondary:`Quality <measurement-classification>`
   * - ``QC_Count_Delta``
     - Detected − Expected (signed; negative = missing).
     - :bdg-ref-secondary:`Quality <measurement-classification>`