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Posted to dev@commons.apache.org by bu...@apache.org on 2003/05/23 10:16:57 UTC
DO NOT REPLY [Bug 20175] New: -
[math] improvements to UnivariateImpl
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=20175
[math] improvements to UnivariateImpl
Summary: [math] improvements to UnivariateImpl
Product: Commons
Version: Nightly Builds
Platform: Other
OS/Version: Other
Status: NEW
Severity: Normal
Priority: Other
Component: Sandbox
AssignedTo: commons-dev@jakarta.apache.org
ReportedBy: phil@steitz.com
The attached patch includes the following improvements to Univariate and
UnivariateImpl:
* Improved efficiency of min, max and product maintenance when windowSize is
limited by incorporating suggestion posted to commons-dev by Brend Worden
(added author credit). Thanks, Brent!
* Added javadoc specifying NaN contracts for all statistics, definitions for
geometric and arithmetic means.
* Made some slight modifications to UnivariateImpl to make it consistent with
NaN contracts
* All interface documentation moved to Univariate. The interface specification
includes the NaN semantics and a first attempt at clealy defining exactly what
"rolling" means and how this effects what statistics are defined when.
* Added test cases to verify that min, max, product are correctly maintained
when "rolling" and to verify that NaN contracts are satisfied.
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