Returns a TimeSeriesRDD rebased on top of a new index.  Any timestamps that exist in the new
        index but not in the existing index will be filled in with NaNs.
        
        Parameters
        ----------
        new_index : DateTimeIndex

def with_index(self, new_index):
        """
        Returns a TimeSeriesRDD rebased on top of a new index.  Any timestamps that exist in the new
        index but not in the existing index will be filled in with NaNs.
        
        Parameters
        ----------
        new_index : DateTimeIndex
        """
        return TimeSeriesRDD(None, None, self._jtsrdd.withIndex(new_index._jdt_index), self.ctx)