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Celonis Product Documentation

TRIMMED_MEAN
Description

This function calculates the trimmed mean over an INT or FLOAT column.

The result of TRIMMED_MEAN is always a FLOAT column.

Lower and upper cutoff get rounded to the next smaller whole row number for each group (e.g. Trimmed mean over a group with 42 rows and a lower & upper cutoff of 10% will result in the cut of the upper & lower 4 rows). By default 5% of the lower and upper values are cut off.

If the of upper & lower rows cut is greater or equal to the count of the current group, trimmed mean will return 0 for this group.

Syntax
 TRIMMED_MEAN ( table.column [, lower_cutoff [, upper_cutoff ] ] )
  • lower_cutoff: INT between 0 and 100

  • upper_cutoff: INT between 0 and 100

NULL handling

NULL values are ignored, meaning that they do not influence the result. If all values of a group are NULL, the result for this group is also NULL.

Example

[1]

The values equals or above 100 and equals or below -100 are cut off. The mean is calculated over the values 1, 2, 3 and 4.

Query

Column1

         TRIMMED_MEAN ( "Table1"."Value" , 30 , 30 )
        

Input

Output

Table1

Value : int

102

101

100

4

3

2

1

-100

-101

-102

Result

Column1 : float

2.5

See also: