xarray.DataArray.combine_first

DataArray.combine_first(other: xarray.core.dataarray.DataArray) → xarray.core.dataarray.DataArray

Combine two DataArray objects, with union of coordinates.

This operation follows the normal broadcasting and alignment rules of join='outer'. Default to non-null values of array calling the method. Use np.nan to fill in vacant cells after alignment.

Parameters
otherDataArray

Used to fill all matching missing values in this array.

Returns
DataArray