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.
Syntax:
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. To see the result, add the fields listed in the results column to a sheet in your app.
| Example | Result |
|---|---|
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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: LOAD Type, Fractile(Value,0.75) as MyFractile Resident Table1 Group By Type;
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In a table with the dimensions Type and MyFractile, the results of the Fractile() calculations in the data load script are: Type MyFractile Comparison 27.5 Observation 36 |