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Posted to dev@commons.apache.org by Apache Wiki <wi...@apache.org> on 2013/11/01 08:18:02 UTC
[Commons Wiki] Update of "MathWishList" by ThomasNeidhart
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The "MathWishList" page has been changed by ThomasNeidhart:
https://wiki.apache.org/commons/MathWishList?action=diff&rev1=77&rev2=78
Comment:
Remove features already implemented
* Add more special math functions such as Bessel functions and so on.
* Add support for iterative linear solvers (see discussion [[http://mail-archives.apache.org/mod_mbox/commons-dev/201104.mbox/<20...@svoboda.polytechnique.org>|http://mail-archives.apache.org/mod_mbox/commons-dev/201104.mbox/%3C20110413062230.2B0E41405982C@svoboda.polytechnique.org%3E]]): see wiki page IterativeLinearSolvers
* Add remedian statistic - [[http://www.agoras.ua.ac.be/abstract/Remrob90.htm|The Remedian: a Robust Averaging method for Large Data Sets]]
- * Add ability to compute the density of normal distribution and other well behaved distributions (done for some distributions https://issues.apache.org/jira/browse/MATH-222)
* Add ability to sample from some of the common distributions such as normal, gamma, beta and so on.
* Add Dirichlet, Multinomial distributions
- * Add additional alternative pseudo-random number generators (PRNGs)
* Investigate alternative methods for generating values from discrete distributions http://www.jstatsoft.org/v11/i03/
* Resampling http://markmail.org/message/u3diwc76m66r7qme
* Applied-mathematical/Mathematical-physics algorithms? - Henri Yandell
@@ -21, +19 @@
* [[http://zxg32.blogchina.com/2787280.html|Post-SOC TODO List]] - Xiaogang Zhang
* Implement monte carlo simulation http://en.wikipedia.org/wiki/Monte_Carlo_method
* [[PrimeNumbers|Prime Numbers Functionality]] -- SharonLourduraj
- * Naive Primality Testing
- * Probablistic Tests
* Ofcourse, we will take it slowly, this area is vast and time consuming.
* Implementing algorithms for practicality, and look into optimizing the algorithms (in terms of implementing it).
* AbstractStorelessUnivariateStatistic.evaluate(...) and all the workhorse implementations in subclasses should be static methods. -- NickGuenther
* StandardDeviation has versions of .evaluate which take a precalculated mean. It would be nice if the same sort of thing could be had for all the other measures (e.g. skewness & kurtosis should be able to take both precalculated means and standard deviations) -- NickGuenther
* Generalized Matrix Inversion, as I describe on http://mjollnir.com/matrix/ -- Rand Huso
* Estimation of Omega in GLSMultipleLinearRegression using, for example Feasible Generalized Least Squares http://en.wikipedia.org/wiki/Feasible_generalized_least_squares
- * Add [[http://en.wikipedia.org/wiki/Convolution|convolution]], [[http://en.wikipedia.org/wiki/Laplace_transform|Laplace transform]], [[http://en.wikipedia.org/wiki/Z-transform|Z-transform]] and similar signal/image processing and filtering related essentials.
+ * Add [[http://en.wikipedia.org/wiki/Laplace_transform|Laplace transform]], [[http://en.wikipedia.org/wiki/Z-transform|Z-transform]] and similar signal/image processing and filtering related essentials.
* Add further functionality for BigDecimal and BigInteger arithmetic in particular a power function that will input two BigDecimal type numbers and raise one to the power of the other and return the result correct to a number of specified decimal places. This may best be added to the util.MathUtils class along with other pow functions - suggested by Andy Turner (2011-01-20)
* Add fitter functions for linear models similar to ''lm.wfit'' in ''R''(2011-11-14)
* A mixed integer linear programming solver
* A quadratic programming solver
- * Implement the Kendall's Tau which is a measure of Association/Correlation between ranked ordinal data.[[https://issues.apache.org/jira/browse/MATH-814]]
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