core.py 文件源码

def round(self, decimals=0, out=None):
        """
        Return an array rounded a to the given number of decimals.

        Refer to `numpy.around` for full documentation.

        See Also
        --------
        numpy.around : equivalent function

        """
        result = self._data.round(decimals=decimals, out=out).view(type(self))
        if result.ndim > 0:
            result._mask = self._mask
            result._update_from(self)
        elif self._mask:
            # Return masked when the scalar is masked
            result = masked
        # No explicit output: we're done
        if out is None:
            return result
        if isinstance(out, MaskedArray):
            out.__setmask__(self._mask)
        return out