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Details
Goals
Creation of advanced measures in DAX.
Prerequisite
Basic knowledge of Power BI Desktop (basic DAX and creating visuals).
Contents
Reminders
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Create a calculated column,
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Create a date table using a formula,
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Create simple measures (SUM, DISTINCTCOUNT),
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Use CALCULATE to change the filter context within a formula.
Function spotlight: Calculate
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Use CALCULATE with column filters,
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Use CALCULATE with table filters (ALL, ALLSELECTED, REMOVEFILTERS, FILTER).
Iterator Functions
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Use SUMX to create a measure based on a calculation at table level (sum of field1*field2, etc.),
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Use CONCATENATEX and DISTINCT to create a measure that concatenates all possible values for a field,
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Use RANKX to calculate Ranks,
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Use AVERAGEX, SUMMARIZE and ADDCOLUMNS to create an average of sums by category.
Time Intelligence
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Calculate Year-to-Date and Quarter-to-Date values (TOTALYTD, TOTALQTD),
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Compare a period to the same period one or more year(s), quarter(s) or month(s) earlier (DATEADD),
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Compare a period to its parent period – quarter to year, month to year, etc. (PARALLELPERIOD).
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