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Apache Commons Statistics

Apache Commons Statistics is an Apache Software Foundation library that provides reusable statistical components for Java applications.

  • Reusable Java components for descriptive statistics and probability distributions (statistics library)
  • APIs for common statistical calculations such as moments, summary statistics, and inference support (statistics library)
  • Implementations of probability distributions and related functions for modeling and simulation (numerical computing)
  • Designed for integration into other Apache Commons and third-party Java projects (Java ecosystem integration)
  • Developed and maintained under the Apache Commons process and Apache License 2.0 (open-source governance)

More About Apache Commons Statistics

Apache Commons Statistics is part of the Apache Commons family of reusable Java components (Java library). It focuses on statistical functionality that can be embedded into larger applications, giving developers access to a structured toolkit for common statistical operations without building such logic from scratch.

The project provides APIs for descriptive statistics (statistics library), such as measures that summarize data sets, and for working with probability distributions (numerical computing). These components are designed as modular Java interfaces and classes, which can be used independently or composed within domain-specific analytics, reporting, or data-processing code. The library follows Apache Commons design practices, emphasizing clear APIs, testable components, and reuse across multiple projects within the Java ecosystem.

Enterprises use Apache Commons components in application servers, integration platforms, and custom line-of-business systems (enterprise application development). Apache Commons Statistics extends this model into the statistics domain, where consistent and vetted implementations of common formulas and distributions are important for risk calculations, reporting, forecasting helpers, or other analytical logic embedded in services and batch processes. Because it is distributed under the Apache License 2.0 (open-source licensing), it can be integrated into proprietary or open-source solutions with standard license terms.

Within an enterprise Java architecture, Apache Commons Statistics fits alongside other Apache Commons modules such as math-related utilities or core libraries (Java ecosystem integration). It can serve as a building block underneath higher-level analytics frameworks, rules engines, or custom microservices that require deterministic statistical computations. Its design as a pure Java library means it can run wherever a compatible JVM is available, from on-premises (on-prem) application servers to cloud-hosted services.

From an interoperability and governance standpoint, Apache Commons Statistics follows the Apache Software Foundation project model (open-source governance). It is developed in the open, uses Apache’s issue tracking and mailing list processes, and aligns with ASF release and quality practices. For technical categorization in an enterprise directory, Apache Commons Statistics fits under Java libraries for statistical computing and probability, with relevance for analytics-enabling services, risk and modeling utilities, and embedded statistical functions within broader business applications.