Kurtosis - script function

Kurtosis() returns the kurtosis of the data in the expression over a number of records as defined by a group by clause.

Syntax:  

Kurtosis([distinct ] expr )

Return data type: numeric

Arguments:  

Argument Description
expr The expression or field containing the data to be measured.
distinct If the word distinct occurs before the expression, all duplicates will be disregarded.

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 '|');

 

Kurtosis1:

LOAD Type,

Kurtosis(Value) as MyKurtosis1,

Kurtosis(DISTINCT Value) as MyKurtosis2

Resident Table1 Group By Type;

 

In a table with the dimensions Type, MyKurtosis1,and MyKurtosis2, the results of the Kurtosis() calculations in the data load script are:

Type MyKurtosis1 MyKurtosis2

Comparison -1.1612957 -1.4982366

Observation -1.1148768 -0.93540144