functions.py 文件源码

def empty_like(array, dtype=None, keepmeta=True):
    """Create an array of empty with the same shape and type as the input array.

    Args:
        array (xarray.DataArray): The shape and data-type of it define
            these same attributes of the output array.
        dtype (data-type, optional): If spacified, this function overrides
            the data-type of the output array.
        keepmeta (bool, optional): Whether *coords, attrs, and name of the input
            array are kept in the output one. Default is True.

    Returns:
        array (decode.array): Decode array without initializing entries.
    """
    if keepmeta:
        return dc.empty(array.shape, dtype,
            tcoords=array.dca.tcoords, chcoords=array.dca.chcoords,
            scalarcoords=array.dca.scalarcoords, attrs=array.attrs, name=array.name
        )
    else:
        return dc.empty(array.shape, dtype)