Is it necessary for a column to appear in the details of a report to summarize it in RW?

In the context of creating reports in RW (Reporting Workbench), it is not required for a column to be physically visible in the details of a report in order to summarize it. What is essential is that the column is accessible within the underlying dataset or the data model being used. This means that as long as the data is available in the system, it can be summarized, regardless of whether it is displayed in the detailed view of the report.

Summarizing data often involves aggregating values such as counts, sums, averages, or other statistical measures, and this can be done as long as the necessary data elements are included in the dataset, even if they are not part of the final visible report layout. This flexibility allows report creators to only show the most relevant information in the report while still calculating important summary statistics based on a broader set of data.