Java-Statistics-Library is a project mainly written in Java, it's free.
A floating-point safe library of common statistical tools.
A general Java library for common statistical functions. All operations are floating-point safe utilizing the BigDecimal framework.
IMPORTANT: Note the project is currently a work in progress. Most if all functions are not complete.
ant build.xmlThen include the generated javaStatistics.jar in your classpath.
// retrieve the standard deviation for a normal distribution
NormalDistribution myDistribution = new NormalDistribution(mySet);
BigDecimal stdDev = myDistribution.getStandardDeviation(); Does the library provide a complete set of statistical functions?
No, at least not yet. For now it will include the functions I find more interesting to work on or more useful. If you want to help contribute more please do.
I don't use BigDecimal in my program, can I still use the library?
You really should be, especially if you deal with currency. If you don't then there are constructors available to create a Distribution from an element set. However, the result you get will be a BigDecimal so you have a change to practice using BigDecimal.
Why is this not already part of Java?
Who knows. I have needed at least one of these functions in every project I've ever done.
Copyright (c) 2011 Sean Byrnes <[email protected]@gmail.com> Released under the MIT license