To create a report in SPSS Modeler that can be run for different months without modification, how should you configure the stream?

Creating a session parameter for the month allows for dynamic input that can be easily adjusted without requiring any modifications to the underlying stream structure. By setting a session parameter, users can specify the month they wish to analyze when running the report, thereby ensuring that the report is flexible and can adapt to various months simply by changing the parameter value.

This approach enhances the usability and maintainability of the report since altering the analysis for a different month is straightforward and does not necessitate manual changes within the stream, which could introduce inefficiencies or errors.

Using a session parameter is particularly effective in scenarios where the analysis needs to be repeated for different time frames, as it allows for a consistent method of input that is user-friendly and reduces the likelihood of mistakes that could arise from modifying a SuperNode directly or relying on hard-coded values.