Excerpt 

Extracts the ranked value from the values in a column, where k=1 returns the maximum value, when a specified condition is met. The value for k must be between 1 and 1000, inclusive. Inputs can be Integer, Decimal, or Datetime. 
KTHLARGESTIF
calculations are filtered by a conditional applied to the group.
For purposes of this calculation, two instances of the same value are treated as separate values. So, if your dataset contains three rows with column values 10
, 9
, and 9
, then KTHLARGEST
returns 9
for k=2
and k=3
.
Input column can be of Integer, Decimal, or Datetime type. Other values column are ignored. If a row contains a missing or null value, it is not factored into the calculation.
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 kth largest calculation without conditionals, use the KTHLARGEST
function. See KTHLARGEST Function.
D lang syntax 

RawWrangle  true 

Type  ref 

showNote  true 

WrangleText  pivot value: kthlargestif(POS_Sales, 1, DayOfWeek == 'Saturday') group:storeNbr limit:1 


kthlargestif(POS_Sales, 1, DayOfWeek == 'Saturday') 
Output: Returns the top value (rank=1) from the POS_Sales
column when the DayOfWeek
value is Saturday
.
D lang syntax 

RawWrangle  true 

Type  syntax 

showNote  true 

WrangleText  pivot value:kthlargestif(col_ref, limit, test_expression) [group:group_col_ref] [limit:limit_count] 


kthlargestif(col_ref, limit, test_expression) [group:group_col_ref] [limit:limit_count] 
Argument  Required?  Data Type  Description 

col_ref  Y  string  Reference to the column you wish to evaluate. 
k_integer  Y  integer  The ranking of the value to extract from the source column 
test_expression  Y  string  Expression that is evaluated. Must resolve to true or false 
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. Inputs must be Integer, Decimal, or Datetime values.
Info 

NOTE: If the input is in Datetime type, the output is in unixtime format. You can wrap these outputs in the DATEFORMAT function to output the results in the appropriate Datetime format. See DATEFORMAT Function. 
Required?  Data Type  Example Value 

Yes  String that corresponds to the name of the column  myValues 
k_integer
Integer representing the ranking of the value to extract from the source column.
Info 

NOTE: The value for k must be an integer between 1 and 1,000 inclusive. 
k=1
represents the maximum value in the column.  If k is greater than or equal to the number of values in the column, the minimum value is returned.
 Missing and null values are not factored into the ranking of
k
.
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 

Yes  String expression that evaluates to true or false  (LastName == 'Mouse' && FirstName == 'Mickey') 
Example  Secondmost measurements for a specific city
Include Page 

 EXAMPLE  KTHLARGESTIF Function 

 EXAMPLE  KTHLARGESTIF Function 

