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Mastering Tableau 2023
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An important stop on the road to mastering Tableau involves three essential concepts. In this section, we’ll discuss each of them:
We’ll start by defining dimensions and measures.
Tableau categorizes every field from an underlying data source as either a dimension or a measure. A dimension is qualitative or, to use another word, categorical. A measure is quantitative or aggregable. A measure is usually a number but may be an aggregated, non-numeric field, such as MAX (Date)
. A dimension is usually a text, Boolean, or date field, but may also be a number, such as Number of Records
. Dimensions provide meaning to numbers by slicing those numbers into separate parts/categories. Measures without dimensions are mostly meaningless.
Let’s look at an example to understand...