The ATTR() function in Tableau evaluates dimension values within a group, returning the value if all members are identical or an asterisk (*) if multiple values exist. It serves multiple purposes incl
uding tooltip enhancement, aggregation error resolution, and data validation, while always converting the result to a measure type.
Reasons to Read -- Learn:
how to effectively use ATTR() function in Tableau to resolve common aggregation errors in calculations, which can save hours of troubleshooting time
practical implementation techniques for enhancing tooltips with ATTR(), including the advanced Viz in Tooltip approach introduced in Tableau 10.5
how to use ATTR() for data validation, specifically to identify and investigate cases where one-to-one relationships are violated in your data
publisher: @deepak.holla
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