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Extracts the ranked unique value from the values in a column, where k=1 returns the maximum value. The value for k must be between 1 and 1000, inclusive.

For purposes of this calculation, two instances of the same value are treated as the same value of k. So, if your dataset contains four rows with column values 10, 9, 9, and 8, then KTHLARGEST returns 9 for k=2 and 8 for k=3.

For a non-unique version of this function, see KTHLARGEST Function.

When used in a pivot transform, the function is computed for each instance of the value specified in the group parameter. See Pivot Transform.

Input column can be of Integer or Decimal type. Non-numeric data in the column is ignored. If a row contains a missing or null value, it is not factored into the calculation.

pivot value:KTHLARGESTUNIQUE(myRating, 3) group:postal_code limit:1

Output: Generates a two-column table containing the unique values in the postal_code column and the third highest unique value from the myRating column for that postal_code value. The limit parameter defines the maximum number of output columns.

pivot value:KTHLARGESTUNIQUE(function_col_ref, k_integer) [group:group_col_ref] [limit:limit_count]

Argument	Required?	Data Type	Description
function_col_ref	Y	string	Name of column to which to apply the function
k_integer	Y	integer (positive)	The ranking of the unique value to extract from the source column

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

function_col_ref

Name of the column the values of which you want to calculate the mean. Column must contain Integer or Decimal values.

Literal values are not supported as inputs.
Multiple columns and wildcards are not supported.

Required?	Data Type	Example Value
Yes	String (column reference)	`myValues`

k_integer

Integer representing the ranking of the unique value to extract from the source column. Duplicate values are treated as a single value for purposes of this function's calculation.

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.

Required?	Data Type	Example Value
Yes	Integer (positive)	`4`