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Counts the number of unique values within a column or group. This is an alias of the CountDistinct function and works the same way.

Usage

CountDistinct(<field>)

Field (required) The column of values to be counted. Duplicate and Null values are skipped.

Examples

CountDistinct([City])
  • Finds the number of unique city names

See Also

CountDistinct
Count
CountIf

More About Aggregate Functions

Aggregate functions are special functions which summarize columns from lower levels. Aggregate functions can be used on on Grouped levels or in a Total column. For example, they can be used to Sum all of the values of a column, or Count all of the values for each grouping of a column. As such, aggregates must always refer to columns in a level lower than the result.

If the column being aggregated is grouped, then the aggregate is computed for each group. For example, if the worksheet is grouped by the column [Year], then placing Sum([Revenue]) on the [Year] level computes the revenue for each year.

The results of aggregate functions can be referenced by lower levels. An example would be to create a Sum([Amount]) column as Total and then an [Amount] / [Total] column as Percentage. This converts each Amount value into a relative percentage value.

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