XarrayLoader

class XarrayLoader(params=None, **kwargs)

Bases: LoaderAbstract[str | PathLike, Dataset]

Load from single source with Xarray.

Uses xarray.open_dataset() or xarray.open_mfdataset() to open data.

Parameters:

• params (Any | None)

• kwargs (Any)

load_data_concrete(source, **kwargs)

Load data.

Parameters:

• source (str | PathLike | Sequence[str | PathLike]) – Sequence of files containing data.

• kwargs (Any) – Arguments passed to xarray.open_dataset(). They will take precedence over the default values of the class attribute open_dataset_kwargs and open_mfdataset_kwargs.

Return type:

Dataset

open_dataset_kwargs: dict[str, Any] = {}

Options passed to xarray.open_dataset(). DataInterface.get_data() kwargs take precedence.

open_mfdataset_kwargs: dict[str, Any] = {}

Options passed to xarray.open_mfdataset(). DataInterface.get_data() kwargs take precedence.

preprocess()

Return a function to preprocess data.

If preprocess in open_mfdataset_kwargs is True, the function will be used for the corresponding open_mfdataset argument. The function should take in and return a dataset.

Return type:

Callable[[Dataset], Dataset]