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Celonis Product Documentation

MOVING_MEDIAN
Description

This function calculates the median for each window. It can be applied to any data type.

Syntax
 MOVING_MEDIAN ( table.column, start, end )
NULL handling

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

Examples

[1]

Moving median for current row, one row above and one row after.

Query

Column1 

         "Table1"."MONTH"

Column2 

         MOVING_MEDIAN ( "Table1"."INCOME" , - 1 , 1 )

Input

Output

Table1

MONTH : int

INCOME : int

1

100

1

300

2

400

3

300

4

500

Result

Column1 : int

Column2 : int

1

300

1

300

2

300

3

400

4

500

[2]

Moving median for current row, one row above and one row after with null values.

Query

Column1 

         "Table1"."MONTH"

Column2 

         MOVING_MEDIAN ( "Table1"."INCOME" , - 1 , 1 )

Input

Output

Table1

MONTH : int

INCOME : int

1

null

1

null

2

400

3

300

4

500

Result

Column1 : int

Column2 : int

1

null

1

400

2

400

3

400

4

500

[3]

Moving median for current row, one row above and one row after. A FILTER is applied, such that only rows with an INCOME value less than 500 are taken into account.

Query

Filter 

         FILTER "Table1"."INCOME" < 500;

Column1 

         "Table1"."MONTH"

Column2 

         MOVING_MEDIAN ( "Table1"."INCOME" , - 1 , 1 )

Input

Output

Table1

MONTH : int

INCOME : int

1

null

1

null

2

400

3

500

4

300

Result

Column1 : int

Column2 : int

2

400

4

400

See also: