Return the formatted data as a unicode string.

def _format_data(self, name=None):
        """
        Return the formatted data as a unicode string.
        """

        # do we want to justify (only do so for non-objects)
        is_justify = not (self.inferred_type in ('string', 'unicode') or
                          (self.inferred_type == 'categorical' and
                           is_object_dtype(self.categories)))

        return format_object_summary(self, self._formatter_func,
                                     is_justify=is_justify, name=name)