For more details regarding functions in this recipe, refer to the following links:
- SUMMARIZE: https://docs.microsoft.com/en-us/dax/summarize-function-dax
- FILTER: https://docs.microsoft.com/en-us/dax/filter-function-dax
- COUNTROWS: https://docs.microsoft.com/en-us/dax/countrows-function-dax
- MAXX: https://docs.microsoft.com/en-us/dax/maxx-function-dax
- CONCATENATEX: https://docs.microsoft.com/en-us/dax/concatenatex-function-dax
- UNION: https://docs.microsoft.com/en-us/dax/union-function-dax
- GROUPBY: https://docs.microsoft.com/en-us/dax/groupby-function-dax