Chapter 2
Model the data
In the previous chapter, we reviewed the skills necessary to get and transform data by using Power Query Editor—the process also known as data shaping. In this chapter, we examine the skills needed to model data.
Although Power BI allows you to analyze your data to some degree right after you load it, a strong understanding of data modeling allows you to perform sophisticated analysis using rich data modeling capabilities, which includes creating relationships, hierarchies, and various calculations to bring out the true power of Power BI. Previously in the Power Query Editor we used the M language; after we load the data into the model, we use data analysis expressions, more commonly referred to as DAX—Power BI’s native ...
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