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.

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.

kthlargestunique(myRating, 3)

Output: Returns the third highest unique value from the myRating column.

kthlargestunique(function_col_ref, k_integer) [ group:group_col_ref] [limit:limit_count]


ArgumentRequired?Data TypeDescription
function_col_refYstringName of column to which to apply the function
k_integerYinteger (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.

Required?Data TypeExample Value
YesString (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.

Required?Data TypeExample Value
YesInteger (positive)4