Method to_numpy

python/ray/data/block.py:471–479

Convert this block (or columns of block) into a NumPy ndarray. Args: columns: Name of columns to convert, or None if converting all columns.

(
        self, columns: Optional[Union[str, List[str]]] = None
    )

        raise NotImplementedError

    def to_numpy(
        self, columns: Optional[Union[str, List[str]]] = None
    ) -> Union[np.ndarray, Dict[str, np.ndarray]]:
        """Convert this block (or columns of block) into a NumPy ndarray.

        Args:
            columns: Name of columns to convert, or None if converting all columns.
        """
        raise NotImplementedError

    def to_arrow(self) -> "pyarrow.Table":
        """Convert this block into an Arrow table."""