Fractile - script function

Fractile() finds the value that corresponds to the inclusive fractile (quantile) of the aggregated data in the expression over a number of records as defined by a group by clause.

Tip: You can use FractileExc - script function to calculate the exclusive fractile.

Syntax:

Fractile(expr, fraction)

Return data type: numeric

The function returns the value corresponding to the rank as defined by rank = fraction * (N-1) + 1 where N is the number of values in expr. If rank is a non-integer number, an interpolation is made between the two closest values.

Arguments:

Argument Description
expr The expression or field containing the data to use when calculating the fractile.
fraction A number between 0 and 1 corresponding to the fractile (quantile expressed as a fraction) to be calculated.

Examples and results:

Add the example script to your app and run it. Then add, at least, the fields listed in the results column to a sheet in your app to see the result.

Example Result

Table1:

crosstable LOAD recno() as ID, * inline [

Observation|Comparison

35|2

40|27

12|38

15|31

21|1

14|19

46|1

10|34

28|3

48|1

16|2

30|3

32|2

48|1

31|2

22|1

12|3

39|29

19|37

25|2 ] (delimiter is '|');

Fractile1: