SAP ABAP Data Element RSAN_WB_DST_REGRESSION (Transformation "Linear Regression")
Hierarchy
☛ SAP_BW (Software Component) SAP Business Warehouse
   ⤷ BW-EI-APD (Application Component) Analysis Process Designer
     ⤷ RSAN_WB (Package) APD - Tool - User Interface
Basic Data
Data Element RSAN_WB_DST_REGRESSION
Short Description Transformation "Linear Regression"  
Data Type
Category of Dictionary Type     Direct Type Entry
Type of Object Referenced     No Information
Domain / Name of Reference Type      
Data Type STRG   Character String of Variable Length 
Length 0    
Decimal Places 0    
Output Length 0    
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 Text 
Medium 20 Description 
Long 40 Description 
Heading 60 Description 
Documentation

Use

This node provides the mathematical method of the same name as the function for the analysis process. You can choose the dimension, that is, the number of variables in the method (n). The method is determined using the following formula:

x0 = a0 + a1 * x1 + a2 * x2 + .... + an * xn

The results ai are determined from the input data xi. The regression coefficients ai and the mean values AVGi of the input values are contained in the output structure.

Activities

  1. In the Definition tab page, specify the dimension for the regression. You can use an indicator to specify that the regression coefficients are standardized.
  2. In the Details tab page, choose the fields for the algorithm.

You can select as grouping fields any fields that are needed to run the process but that are not in the algorithm.

Runtime behavior

The input and output structures differ in the case of regression. The fields selected in the Details tab page as input fields for the regression are not forwarded. The grouping fields and the results of the regression define the output structure of the node. The regression is performed separately for each different value of the grouping fields.

Example

History
Last changed by/on SAP  20130604 
SAP Release Created in 30B