Commons-Math Wish List

A list of feature requests made by Commons-Math users, contributors, and committers. These requests will be considered when deciding on new functionality for future releases. At any time, additional feature requests can be added simply by editing this page.

• Add remedian statistic - [http://www.agoras.ua.ac.be/abstract/Remrob90.htm The Remedian: a Robust Averaging method for Large Data Sets]

• Add population variance and standard deviation statistic.
• Add alternative pseudo-random number generators (PRNGs)
  • "implement good random number generators, e.g., like those described in Numerical Recipes or Knuth". – AlChou

  • I highly recommend working with Paul Houle [http://www.honeylocust.com/RngPack/] to get these random number generators integrated into the math library. He has stated to me in the past that he is willing to relicense them under the Apache license. As well I beleive that with the BSD being compatable with Apache licensing, there would be little stopping us from integrating them ourselves as a derivative work. - Mark Diggory

  • Support PRNG-pluggability throughout the random package.

  • Investigate alternative methods for generating values from discrete distributions [http://www.jstatsoft.org/v11/i03/]

• Add sparse matrix implementation.

• Add a fraction type - Can start with implementation contributed to [lang] here [http://issues.apache.org/bugzilla/show_bug.cgi?id=29294]

• Add submatrix accessors - [http://issues.apache.org/bugzilla/show_bug.cgi?id=30896]

• Add rounding utilties [http://www.theserverside.com/news/thread.tss?thread_id=28596#137352]

• Develop Genetic Algorithms Framework [http://nagoya.apache.org/eyebrowse/ReadMsg?listName=commons-dev@jakarta.apache.org&msgNo=56875]

• Resampling [http://nagoya.apache.org/eyebrowse/BrowseList?listName=commons-dev@jakarta.apache.org&by=thread&from=582054]

• Applied-mathematical/Mathematical-physics algorithms? - Henri Yandell