| Excerpt |
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Generates the maximum value of rows in each group that meet a specific condition. |
| Info |
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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 calculate the maximum value of rows without conditionals, use the MAX function. See MAX Function.
| D lang syntax |
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| RawWrangle | true |
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| Type | ref |
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| showNote | true |
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| WrangleText | pivot value: maxif(testScores, testCount >= 3) group:studentId limit:1 |
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maxif(testScores, testCount >= 3) |
Output: Returns the maximum of the testScores column when the testCount is greater than or equal to 3.
| D lang syntax |
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| RawWrangle | true |
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| Type | syntax |
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| showNote | true |
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| WrangleText | pivot value:maxif(col_ref, test_expression) [group:group_col_ref] [limit:limit_count] |
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maxif(col_ref, test_expression) [group:group_col_ref] [limit:limit_count] |
| Argument | Required? | Data Type | Description |
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| col_ref | Y | string | Reference to the column you wish to evaluate. |
| test_expression | Y | string | Expression that is evaluated. Must resolve to true or false |
For more information on the group and limit parameters, 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.
| Required? | Data Type | Example Value |
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| Yes | String 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.
| Required? | Data Type | Example Value |
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| Yes | String expression that evaluates to true or false | (LastName == 'Mouse' && FirstName == 'Mickey') |
Example - Conditional Calculation Functions
| Include Page |
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| EXAMPLE - Conditional Calculations Functions |
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| EXAMPLE - Conditional Calculations Functions |
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