.. _coveragestats: Coverage (Panel) ----------------- .. image:: ../_images/coverage_statistics.JPG :alt: Coverage Panel. The Coverage Panel summarises how even your SPL coverage is, in numbers. Open it from the panel add menu in the :ref:`3D SOURCES`, :ref:`2D SOURCE<2DSource>` or custom tabs, with :ref:`SPL mapping` switched on - the statistics cover exactly the points the heat map draws. **Statistics Table** One table shows average SPL and evenness (Z, A and C weighted) for the broadband and each octave band from 63 Hz to 8 kHz, with a footer row giving the broadband spread (standard deviation) per weighting. Below the table, a histogram shows the distribution of the band the heat map is currently displaying - choose it with the stimulus/band/weighting dropdowns in the :ref:`3D View<3dview>`'s header. **Tolerance** Set the **Tolerance (± dB)** with the − / + stepper to define the evenness window used by the table, the histogram and the badge. The badge shows the spread and the percentage of points within tolerance. **Cutting Planes** Cutting planes re-scope the statistics: slice the venue in the :ref:`3D View<3dview>` and the tables, histogram and badge follow, so the evenness of a single zone can be assessed in isolation. As with all :ref:`Panels`, the Coverage Panel can be resized and moved using :ref:`Panel Drag & Drop`, and 'popped out' into an :ref:`additional System Optimiser window`. The location of this Panel will be saved as part of the current :ref:`tab`.