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Welcome to the birt-aggregations-lib wiki!

Business Intelligence and Reporting Tools (BIRT)is a top level Eclipse project. As an Eclipse project, BIRT is built for extendability. Developers can customize BIRT to support custom controls and behavior through BIRT extension points. Extension points allow complex custom operations to be integrated right into the BIRT UI and scripting language.

The birt-aggregations-lib project adds a set of aggregations to use in place of the built-in aggregations to avoid the tiny errors that can be produced by floating-point calculations.

Built-In Aggregate	Corresponding Decimal Aggregate
AVE	Decimal Average
FIRST	Decimal First
LAST	Decimal Last
MAX	Decimal Max
MEDIAN	Decimal Median
MIN	Decimal Min
MODE	Decimal Mode
MOVINGAVE	Decimal Moving Ave
NPV	Decimal NPV
PERCENTILE	Decimal Percentile
PERCENTSUM	Decimal Percent Sum
QUARTILE	Decimal Quartile
RANGE	Decimal Range
RUNNINGNPV	Decimal Running NPV
RUNNINGSUM	Decimal Running Sum
STDDEV	Decimal StdDev
SUM	Decimal Sum
VARIANCE	Decimal Variance
WEIGHTEDAVE	Decimal Weighted Ave

All of the provided aggregations have been tested for compatibility with BIRT 4.14 and is compatible with BIRT 2.5.1 or later.

Innovent Solutions, Inc. is a consulting firm and a member of the BIRT project team since 2004. The software in this project has been donated back to the BIRT community by Innovent under an Eclipse Public License 2.0. We welcome you to use, critique, and contribute to this component library.

To get started see the Usage Guide