Blue and Green Are Query Clues
Use Tableau pill color and field role to predict view behavior before dragging a field.
Blue makes buckets; green makes axes. The mechanism Tableau basics get much easier when you stop treating blue and green as decoration. Blue pills are discrete: they create headers, panes, and category breaks. Green pills are continuous: they create axes and ranges. Dimensions usually describe slices such as Region or Customer Segment; measures usually produce quantitative values such as Sales or Profit. The mechanism matters because every drag changes the query Tableau sends and the level of detail in the view. A discrete date like YEAR(Order Date) creates separate headers. A continuous date creates an axis that can show a…
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