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How to use an unpivot transform in Power BI Desktop Query Editor Part one of a three-part series of blogs |
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If you get data in pivot (two-dimensional) form, you can unpivot it to get the underlying rows, and hence produce charts and visuals. This blog shows how!
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This blog shows starts with a simple spreadsheet of data in Excel:

The source data for this case study.
I'll show how you can load this into Query Editor (you could use either PowerPivot or Power BI Desktop; for this blog we'll use the latter), and then transform it to get this:

We'll apply an unpivot transform to generate one row for each value in the Excel spreadsheet.
Finally, I'll use this data to derive the following chart:

I'll show (in summary) how to create this stacked column chart.
Let's start with importing the data!
You can download the file yourself if you want to follow along!
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