Applies to:
@RISK 4.x and Up

Error: 

"The correlation matrix ... is not square."

Cause:

The correlation matrix is a matrix that is specified in the first argument of one or more RiskCorrmat functions.

• "Not square" means that the number of rows is different from the number of columns.

Solution:

Check whether the address refers to the correct number of rows and columns.

For example, AF106:AG106 covers one row and two columns. If this is the issue, review the first argument of each RiskCorrmat function in your model and correct the ranges as needed.

In recent versions of @RISK, you can quickly locate all RiskCorrmat functions by opening the Model Window and selecting the Correlations tab. If this option is not available, use Excel’s Ctrl+F. Under Options, set Within to Sheet, Look in to Formulas, and clear any checked boxes.