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Date: 25 Jun 2003 13:31:25 -0000
Message-ID: <20030625133125.3888.qmail@icarus.apache.org>
From: mdiggory@apache.org
To: jakarta-commons-sandbox-cvs@apache.org
Subject: cvs commit: jakarta-commons-sandbox/math/xdocs tasks.xml

mdiggory    2003/06/25 06:31:25

  Modified:    math/xdocs tasks.xml
  Log:
  PR: http://nagoya.apache.org/bugzilla/show_bug.cgi?id=21015
  Submitted by:	phil@steitz.com
  
  Revision  Changes    Path
  1.6       +48 -42    jakarta-commons-sandbox/math/xdocs/tasks.xml
  
  Index: tasks.xml
  ===================================================================
  RCS file: /home/cvs/jakarta-commons-sandbox/math/xdocs/tasks.xml,v
  retrieving revision 1.5
  retrieving revision 1.6
  diff -u -r1.5 -r1.6
  --- tasks.xml	5 Jun 2003 14:10:43 -0000	1.5
  +++ tasks.xml	25 Jun 2003 13:31:25 -0000	1.6
  @@ -52,65 +52,48 @@
      <subsection name="Unclassified priority"> 
       <ul>
        <li>
  -      Add bootstrap confidence intervals to StoredUnivariate
  -      implementations.
  -     </li>
  -     <li>
  -     Improve numerical accuracy of Univariate and BivariateRegression statistical
  -     computations
  -     </li>
  -     <li>
  -      t-test statistic needs to be added and we should probably add the
  -      capability of actually performing t- and chi-square tests at fixed
  -      significance levels (.1, .05, .01, .001).
  -     </li>
  -     <li>
  -      numerical approximation of the t- and chi-square distributions to
  -      enable user-supplied significance levels.      
  -     </li>
  -     <li>
  -      The RealMatrixImpl class is missing some key method implementations.
  -      The critical thing is solution of linear systems.  We need to implement a 
  -      numerically sound solution algorithm.  This will enable inverse() and also
  -      support general linear regression.
  -     </li>
  -     <li>
  -      ComplexNumber implementation, supporting C9x Annex G spec.
  -     </li>
  -     <li> Extend distribution framework to 
  -      support discrete distributions and implement binomial and hypergeometric
  -      distributions.
  +      Add confidence intervals to Univariate implementations.
  +     </li>     
  +     <li> Extend distribution framework to support discrete distributions and 
  +      implement binomial and hypergeometric distributions.
        </li>
        <li>
         Framework and implementation strategie(s) for finding roots or real-valued
  -      functions of one (real) variable
  -     </li>
  -     <li>
  -      Exponential growth and decay (set up for financial applications)
  -     </li>
  -     <li>
  -      Polynomial Interpolation
  +      functions of one (real) variable.
        </li>
        <li>
  -      Addition of a Arithmetic Geometric Mean
  +      Cubic spline interpolation.
        </li>
        <li>
  -      Javadoc generation currently throws 35 warnings.  Bring the 
  +      Javadoc generation is still throwing warnings.  Bring the 
         Javadoc into compliance (i.e. reach zero warnings).
        </li>
        <li>
  -      Clover tests show lots of gaps in test path coverage. Get all tests to
  -      100% coverage
  +      Clover tests show gaps in test path coverage. Get all tests to
  +      100% coverage.  Also improve test data and boundary conditions coverage.
        </li>
        <li>
         CheckStyle with modified properties still shows many errors.  Clean these
         up.
        </li>
        <li>
  -      Define full package structure and develop user's guide following package
  -      structure
  +      Develop user's guide following the package structure.
  +     </li>
  +     <li>Additional performance and accuracy testing. If anyone is interested 
  +      in helping out here, what we could really use is a wider selection of 
  +      test cases for the core numerical functions and validation against either 
  +      other packages (e.g. R for the statistical stuff), verified datasets, 
  +      or experiments comparing implementions using floats to doubles.
  +     </li>
  +     <li>
  +       Additional code review. Verify that the code matches the 
  +       documentation and identify obvious inefficiencies or numerical problems.  
  +       All feedback/suggestions for improvement/patches are welcome.
        </li>
  -      
  +     <li>
  +      Finalize the contents of MathUtils and StatUtils. Suggest any additions 
  +      -- ideally with patches --  to these utility classes.
  +     </li> 
       </ul>
      </subsection>
   
  @@ -135,6 +118,29 @@
       <li>
         Add percentiles to stored Univariate implementations
       </li>
  +    <li>
  +     Improve numerical accuracy of Univariate and BivariateRegression statistical
  +     computations
  +     </li>
  +     <li>
  +      t-test statistic needs to be added and we should probably add the
  +      capability of actually performing t- and chi-square tests at fixed
  +      significance levels (.1, .05, .01, .001).
  +     </li>
  +     <li>
  +      numerical approximation of the t- and chi-square distributions to
  +      enable user-supplied significance levels.      
  +     </li>
  +     <li>
  +      The RealMatrixImpl class is missing some key method implementations.
  +      The critical thing is solution of linear systems.  We need to implement a 
  +      numerically sound solution algorithm.  This will enable inverse() and also
  +      support general linear regression.
  +     </li>
  +     <li>
  +      Added double[] |-> double methods in StatUtils to take start indexes and length
  +      as parameters and delegate the current "full array" versions to these.
  +     </li>    
       </ul>
      </subsection>
     </section>
  
  
  

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