In the Machine Classification Against Coding Values Widget, which field should be sorted for the stacked bar chart display?

For a stacked bar chart display in the Machine Classification Against Coding Values Widget, sorting by "Active Learning Project Cat. Set::Category Rank (Ascending)" is essential because it organizes the data in a way that aligns with how categories are prioritized or ranked. This ascending order ensures that viewers can easily interpret the chart, starting from the lowest rank and moving to the highest. Such a structure provides clarity and enables easier comparison between the different categories represented in the data.

In visualization, particularly with stacked bar charts, the sequence in which data categories are displayed can significantly affect how users interpret the information. By sorting categories based on their rank, the chart effectively conveys the priority of categories, which might correspond to their importance or the volume of data associated with each.

Other options, while they may provide information, do not serve this specific purpose as effectively. For instance, sorting by "Active Learning Designation" or "Grand Total" could lead to a less intuitive visualization, as these fields do not inherently establish a ranking or prioritization of the categories being represented, thereby potentially confusing the viewer. The specific sorting by the rank in ascending order establishes a logical flow, making it the best choice for this context.