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Comment: Published by Scroll Versions from space DEV and version next

D toc

Excerpt

Generates the average value of rows in each group that meet a specific condition. Generated value is of Decimal type.

Info

NOTE: When added to a transformation, this function is applied to the current sample. If you change your sample or run the job, the computed values for this function are updated. Transformations that change the number of rows in subsequent recipe steps do not affect the values computed for this step.

To perform a simple averaging of rows without conditionals, use the `AVERAGE` function. See AVERAGE Function.

D s
snippet Basic

D lang syntax
RawWrangle true ref true pivot value: averageif(fineValue, finesCount >= 3) group:postal_code limit:1

averageif(fineValue, finesCount >= 3)

Output: Generates a two-column table containing the unique values for `postal_code` and the average of the `fineValue` column for that `postal_code` value when the `finesCount` is greater than or equal to 3. The `limit` parameter defines the maximum number of output columns.

D s
snippet Syntax

D lang syntax
RawWrangle true syntax true pivot value:averageif(col_ref, test_expression) [group:group_col_ref] [limit:limit_count]

averageif(col_ref, test_expression) [group:group_col_ref] [limit:limit_count]

ArgumentRequired?Data TypeDescription
col_refYstringReference to the column you wish to evaluate.
test_expressionYstringExpression that is evaluated. Must resolve to `true` or `false`

D s lang notes

For more information on the `group` and `limit` parameter, see Pivot Transform.

### col_ref

Name of the column whose values you wish to use in the calculation. Column must be a numeric (Integer or Decimal) type.

D s
snippet usage

Required?Data TypeExample Value
YesString that corresponds to the name of the column`myValues`

### test_expression

This parameter contains the expression to evaluate. This expression must resolve to a Boolean (`true` or `false`) value.

D s
snippet usage

Required?Data TypeExample Value
YesString expression that evaluates to `true` or `false``(LastName == 'Mouse' && FirstName == 'Mickey') `

D s
snippet Examples

### Example - Conditional Calculation Functions

Include Page
 EXAMPLE - Conditional Calculations Functions EXAMPLE - Conditional Calculations Functions

D s also
label aggregate