Aggregates table

Pentaho Data Integration

Version
9.3.x
Audience
anonymous
Part Number
MK-95PDIA003-15

The Aggregates table specifies the group you want to aggregate, the aggregation method, and the name of the resulting new field.

The Aggregates table contains the following columns:

Column Description
Name The name of the aggregate field.
Subject The subject on which you want to use an aggregation method.
Type

The aggregate method.

The aggregation methods are:
  • Sum
  • Average (Mean)
  • Median
  • Percentile (linear interpolation)
  • Minimum
  • Maximum
  • Number of values (N)
  • Concatenate strings separated by , (comma)
  • First non-null value
  • Last non-null value
  • First value (including null)
  • Last value (including null)
  • Cumulative sum (all rows option only)
  • Cumulative average (all rows option only)
  • Standard deviation (Population)
  • Concatenate strings that are separated by the character specified in the Value column
  • Number of distinct values
  • Number of rows (without field argument)
  • Standard deviation (sample)
  • Percentile (nearest-rank method).
Value The aggregate value.