Hierarchy
BBPCRM (Software Component) BBPCRM⤷
CRM (Application Component) Customer Relationship Management⤷
CRM_APPLICATION (Package) All CRM Components Without Special Structure Packages⤷
MCP2 (Package) R/3 application development: Sales & Operations Planning
Basic Data
| Data Element | PROG56 |
| Short Description | Forecast model selection using procedure 2 |
Data Type
| Category of Dictionary Type | D | Domain |
| Type of Object Referenced | No Information | |
| Domain / Name of Reference Type | XFLAG | |
| Data Type | CHAR | Character String |
| Length | 1 | |
| Decimal Places | 0 | |
| Output Length | 1 | |
| Value Table |
Further Characteristics
| Search Help: Name | ||
| Search Help: Parameters | ||
| Parameter ID | ||
| Default Component name | ||
| Change document | ||
| No Input History | ||
| Basic direction is set to LTR | ||
| No BIDI Filtering |
Field Label
| Length | Field Label | |
| Short | 10 | Proc. 2 |
| Medium | 18 | Selection proc. 2 |
| Long | 24 | Model selection proc. 2 |
| Heading | 37 | Forecast model sel. using procedure 2 |
Documentation
Definition
You can choose between two procedures for automatic forecast model selection.
Procedure 1
The system carries out statistical tests and determines whether a trend or a seasonal pattern applies. In the trend test, the system subjects the historical data to a regression analysis and checks to see whether there is a significant trend pattern. In the seasonal test, the system clears the historical data of any possible trends and carries out an autocorrelation test.
Procedure 2
The system calculates the models to be tested using various combinations for alpha, beta, and gamma. The smoothing factors are also varied between 0.1 and 0.5 in intervals of 0.1. The system then chooses the model which displays the lowest mean absolute deviation (MAD). Procedure 2 is more precise than procedure 1, but takes much longer.
Procedure
To use procedure 2, set forecast strategy 56 in the forecast profile.
Moreover, if you run the forecast online and set Automatic model selection in the Model Selection dialog box, a further dialog box appears in which you can set procedure 2 as one of your forecast parameters.
History
| Last changed by/on | SAP | 19980218 |
| SAP Release Created in |
