Which feature allows the customization of analytic result calculations in worksheets?

The feature that allows the customization of analytic result calculations in worksheets is workbook variables. Workbook variables can be defined to hold values that can be reused throughout the workbook, enabling users to create more dynamic and tailored calculations specifically suited to their analytic needs. By leveraging workbook variables, users can establish flexible references to data points or parameters which can be used in calculations, thereby allowing for a high degree of customization and adaptability in the analysis.

In contrast, action buttons are primarily used for executing specific actions within the worksheets, such as triggering a data refresh or running a specific process. Calculated tables provide predefined calculations based on existing data but do not offer the same level of user-defined customization as workbook variables. The variable usage dialog helps to manage and visualize the variables used in the workbook but does not directly enable the customization of calculations. Therefore, workbook variables are the most suitable feature for allowing users to customize and tailor their analytic result calculations effectively.