How To Fix RSAN_RT321 - Tolerance: Value Range: [0 (collinear), 1 (not collinear)]

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAN_RT - Messages for Runtime Analysis

• Message number: 321

• Message text: Tolerance: Value Range: [0 (collinear), 1 (not collinear)]

What causes this issue?

The regression analysis requires that the dependent variable x0 and the
independent variables xj are not collinear (that is, they have a linear
dependency). Tolerance measures the degree of linear dependency, the
value range being between 0 and 1. Since the standard errors for the
regression coefficients increase the more the linear dependency
increases (and tolerance decreases), then the standardized, bivariate
correlation coefficients are made available in the output structure
instead of the regression coefficients in cases where tolerance is
below 0.02. The standardized, bivariate correlation coefficients are
not influenced by collinearity.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSAN_RT321 - Tolerance: Value Range: [0 (collinear), 1 (not collinear)] ?

  The SAP error message RSAN_RT321 typically relates to issues with the tolerance settings in the context of data processing or analysis, particularly in the context of SAP BW (Business Warehouse) or SAP HANA. This error indicates that there is a problem with the value range for a certain parameter that is expected to be either 0 (collinear) or 1 (not collinear).
  Cause:
  The error is usually caused by:
  
  Incorrect Parameter Value: The parameter that is being checked is set to a value outside the expected range (0 or 1).
  Data Quality Issues: The data being processed may have inconsistencies or issues that lead to collinearity problems.
  Model Configuration: The configuration of the data model or the query may not be set up correctly, leading to this error.
  
  Solution:
  To resolve the RSAN_RT321 error, you can take the following steps:
  
  
  Check Parameter Settings:
  
  Review the settings for the tolerance parameter in your data model or query. Ensure that it is set to either 0 or 1 as required.
  
  
  
  Data Validation:
  
  Validate the data being processed to ensure there are no issues with collinearity. This may involve checking for duplicate values or highly correlated variables that could lead to collinearity.
  
  
  
  Adjust Model Configuration:
  
  If you are using a data model, check the configuration settings. Ensure that the model is correctly set up to handle the data being processed.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on the error message and its context. This can provide insights into the expected configurations and settings.
  
  
  
  Testing:
  
  After making adjustments, run tests to ensure that the error is resolved and that the data processing works as expected.
  
  
  
  Seek Support:
  
  If the issue persists, consider reaching out to SAP support or consulting with a technical expert who specializes in SAP BW or HANA.
  
  
  
  Related Information:
  
  Collinearity: In statistical terms, collinearity refers to a situation where two or more predictor variables in a regression model are highly correlated. This can lead to unreliable estimates of the coefficients.
  SAP BW and HANA: Understanding the architecture and data modeling principles of SAP BW and HANA can help in troubleshooting such errors effectively.
  Error Logs: Check the error logs for more detailed information about the context in which the error occurred, which can provide additional clues for resolution.
  
  By following these steps, you should be able to identify and resolve the cause of the RSAN_RT321 error in your SAP environment.