WISE OWL EXERCISES
POWER BI EXERCISES
POWER BI DESKTOP EXERCISES
Power BI Desktop | Creating measures in DAX exercise | Use two variables and the CALCULATE function to create a ratio
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The answer to the exercise will be included and explained if you attend the relevant Wise Owl course (sadly, only in the UK for now).
| Software ==> | Power BI Desktop (29 exercises) |
| Version ==> | Latest update |
| Topic ==> | Creating measures in DAX (1 exercise) |
| Level ==> | Average difficulty |
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If you haven't already done so, run the SQL script in the above folder to generate the Make-a-Mammal database.
Create a new Power BI Desktop file, and load the tables from this database into your model. Using variables, create a measure which allows you to show this matrix:
The matrix shows for each cell the ratio between sales for that cell and sales for four- and six-legged animals for the same filter context.
Here's a suggestion of variables to create within your measure:
| Variable | What it could equal |
|---|---|
| FourLeggedSales | The total quantity of sales for the current filter context, but for animals with 4 legs |
| SixLeggedSales | The total quantity of sales for the current filter context, but for animals with 6 legs |
| ManyLeggedRatio | A/B, where A = the total quantity of sales for the current filter context, and B = the sum of the previous two variables |
Save this workbook as Variable fun, then close down the Power BI instance you're using.