The total integer number of data points appearing in the series of this chart that are prior to *series* in this sequence.
(self, series)
| 40 | return self._series.append(series) |
| 41 | |
| 42 | def data_point_offset(self, series): |
| 43 | """ |
| 44 | The total integer number of data points appearing in the series of |
| 45 | this chart that are prior to *series* in this sequence. |
| 46 | """ |
| 47 | count = 0 |
| 48 | for this_series in self: |
| 49 | if series is this_series: |
| 50 | return count |
| 51 | count += len(this_series) |
| 52 | raise ValueError("series not in chart data object") |
| 53 | |
| 54 | @property |
| 55 | def number_format(self): |