When Power BI Desktop creates visuals, it aggregates your data into chunks (or groups) based on values found in the underlying data. Often that's fine, but there may be times when you want to refine how those chunks are presented.
Often when you speak with a DBA about grouping items into specific sets or binning data into certain groups, they will say, "Do it in the presentation layer" and not in your query. Power BI is definitely a great presentation layer, and it contains grouping and binning functionality to support just these sort of requests.
Binning and Grouping data in Power BI are two great features that assist with data exploration and visualization. These features make ad hoc analysis quick and easy. I will demonstrate how I used both in a recent report I created.
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