xarray.core.groupby.DatasetGroupBy.map¶
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DatasetGroupBy.
map
(func, args=(), shortcut=None, **kwargs)¶ Apply a function to each Dataset in the group and concatenate them together into a new Dataset.
func is called like func(ds, *args, **kwargs) for each dataset ds in this group.
Apply uses heuristics (like pandas.GroupBy.apply) to figure out how to stack together the datasets. The rule is:
- If the dimension along which the group coordinate is defined is still in the first grouped item after applying func, then stack over this dimension.
- Otherwise, stack over the new dimension given by name of this grouping (the argument to the groupby function).
Parameters: - func (function) – Callable to apply to each sub-dataset.
- args (tuple, optional) – Positional arguments to pass to func.
- **kwargs – Used to call func(ds, **kwargs) for each sub-dataset ar.
Returns: applied – The result of splitting, applying and combining this dataset.
Return type: