Common Type Definitions¶

Array Types¶

arch.typing.ArrayLike1D¶

alias of ndarray[tuple[int], dtype[float64]] | Series

arch.typing.ArrayLike2D¶

alias of ndarray[tuple[int, int], dtype[float64]] | DataFrame

arch.typing.ArrayLike¶

alias of ndarray | DataFrame | Series

arch.typing.NDArray¶

alias of ndarray

arch.typing.Float64Array¶

alias of ndarray[tuple[int, …], dtype[float64]]

arch.typing.Int64Array¶

alias of ndarray[tuple[int, …], dtype[int64]]

arch.typing.Int32Array¶

alias of ndarray[tuple[int, …], dtype[int32]]

arch.typing.IntArray¶

alias of ndarray[tuple[int, …], dtype[int64]]

arch.typing.BoolArray¶

alias of ndarray[tuple[int, …], dtype[bool]]

arch.typing.AnyArray¶

alias of ndarray[tuple[int, …], Any]

arch.typing.Uint32Array¶

alias of ndarray[tuple[int, …], dtype[uint32]]

class arch.typing.FloatOrArray¶

alias of TypeVar(‘FloatOrArray’, float, ~numpy.ndarray)

class arch.typing.NDArrayOrFrame¶

alias of TypeVar(‘NDArrayOrFrame’, ~numpy.ndarray[tuple[int, …], ~numpy.dtype[~numpy.float64]], ~pandas.core.frame.DataFrame)

arch.typing.AnyPandas¶

alias of Series | DataFrame

Other Types¶

arch.typing.RandomStateState¶

alias of tuple[str, ndarray[tuple[int, …], dtype[uint32]], int, int, float]

arch.typing.RNGType¶

alias of Callable[[int | tuple[int, …]], ndarray[tuple[int, …], dtype[float64]]]

arch.typing.BootstrapIndexT¶

alias of ndarray[tuple[int], dtype[int64]] | tuple[ndarray[tuple[int], dtype[int64]], …] | tuple[list[ndarray[tuple[int], dtype[int64]]], dict[str, ndarray[tuple[int], dtype[int64]]]]

arch.typing.DateLike¶

alias of str | datetime | datetime64 | Timestamp

arch.typing.Label¶

alias of Hashable | None

arch.typing.UnitRootTrend¶

alias of Literal[‘n’, ‘c’, ‘ct’, ‘ctt’]

arch.typing.ForecastingMethod¶

alias of Literal[‘analytic’, ‘simulation’, ‘bootstrap’]