# Python API

## Statistic readers

```{eval-rst}
.. autoclass:: aoquality.BaselineStat
   :members:
   :show-inheritance:

.. autoclass:: aoquality.FrequencyStat
   :members:
   :show-inheritance:

.. autoclass:: aoquality.TimeStat
   :members:
   :show-inheritance:
```

## Combined reader

```{eval-rst}
.. autoclass:: aoquality.AOQuality
   :members:
```

## Shared base class

The three readers inherit the derived statistics (`Mean`, `Std`, `SNR`,
`RFIPercentage`, …) and the combining helpers from this base class.

```{eval-rst}
.. autoclass:: aoquality.BaseAOQuality
   :members:
```

## Module-level helpers

```{eval-rst}
.. autofunction:: aoquality.make_ant_matrix
```

Two module-level constants are also exported:

- `aoquality.available_stats` — the list of statistic names that can be
  requested (`'SNR'`, `'RFIPercentage'`, `'Std'`, `'Mean'`, …).
- `aoquality.pol_dict` — mapping of polarisation index (0-3) to its name
  (`XX`, `XY`, `YX`, `YY`).