The History Correction Summary page provides a summary review of the settings and results from the parameter values set in the D1120 - History Correction page.
Change Impact
You can select a product and customer from the context selectors at the top-right of the page, or manually enter the required value using the search function.
Parameters
This table displays the impact of history correction in terms of unit volumes and unit percentages.
| Parameters | Values |
| Net System Correction (U) | The total number of units corrected in the historic data according to the parameters set for D1120 History Correction. |
| % System Correction | The net system correction units as a percentage of the demand history before any manual correction. |
| Net Total Correction (U) | The net total number of units corrected in historic data, with this being the combined system and manual correction volumes. |
| % Total Correction | The total system correction units as a percentage of the demand history, with this being the combined system and manual correction volumes. |
C-VAR Before Correction and Post Correction charts
Parameters
These two charts display the C-VaR values both before and after the history correction:
- C-Var (Mean): Standard Deviation divided by the Mean of pure history value.
- C-Var (Trend): Standard Error divided by the Mean of the Trendline.
- C-Var (Residual): The difference between the Standard Deviation and Predicted values.
Total Impact
Parameters
This chart displays the impact of history correction in units:
| Parameters | Values |
| Chained History (U) | Displays the sum of Selected History (U) and Inherited History (U). |
| System Corrected History (U) | Displays the applied history correction value. |
| Final Corrected History (U) | Displays the value after considering the system and manual history. |
Year by Year Impact
Parameters
This chart displays the impact of history corrections across the financial years:
| Parameters | Values |
| Chained History (U) | The sum of Selected History (U) and Inherited History (U). |
| System Corrected History (U)T | The applied history correction value. |
| Final Corrected History (U) | The value after considering the system and manual history. |
