ARMAResult._notes

ARMAResult._notes()

Closing diagnostics, omitting any that the specification makes vacuous.

The stationarity line always appears; the invertibility line only when there is a moving-average block to be invertible.

Return type:

tuple[str, ...]

Returns:

Two or three note strings.

Example

>>> rng = np.random.default_rng(0)
>>> y = rng.standard_normal(200)
>>> len(ARMA(y, order=(1, 0)).fit()._notes()), len(ARMA(y, order=(1, 1)).fit()._notes())
(2, 3)