WISE OWL EXERCISES
POWER BI EXERCISES
POWER BI EXERCISES
- Basic reports (4)
- Data sources (2)
- Query editor (2)
- Multiple tables (1)
- Filtering data (4)
- Charts (4)
- Other types of visualisation (1)
- Overview of maps (3)
- Calculated columns (2)
- Introduction to DAX (3)
- Creating measures in DAX (1)
- Calendars (2)
- Date functions (2)
- Drill-through and bookmarks (3)
- Parameters (2)
Power BI | Overview of maps exercise | Produce a map analysing Brexit voting patterns
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Create a new Power BI Desktop, and load data from the Electoral Commission's website. You can find the link you need at this page, or use the Excel workbook in the above folder instead. Remove a few columns in Query Editor, and create a new one showing the percentage leave vote to give:
The PercentLeave column should equal Leave / Valid_Votes.
Create a table showing the 10 areas with the highest percentage of votes to leave:
This hasn't got much to do with maps, but it's fun showing how you can analyse real data so easily!
Create as good a map as you can of the percentage leave voters by area:
The best that Wise Owl can do. This included enabling the Shape Map Visual in Power BI Desktop options, loading the Regions workbook from the above folder to associate each region of the country with England, Wales, Scotland or Northern Ireland, and designating the country column to be of data type Country.
It would be nice to be able to produce a map of leave voters by region or even area, but maps don't seem to support this. Unless you can prove differently (quite possible), in which case your trainer would love to hear from you!
Save this file as Red stains, then close down the instance of Power BI Desktop containing it.