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  Classes of Khaled Al-Shamaa  >  Al-Kashi  >  CHANGLOG  >  Download  
File: CHANGLOG
Role: Documentation
Content type: text/plain
Description: Chang log
Class: Al-Kashi
Compute statistics on a set of values
Author: By
Last change: Version 3.0
Date: 2012-12-28 12:40
Size: 2,377 bytes
 

Contents

Class file image Download
What's new in Al-Kashi 3.0 (release date: Dec 29, 2012)
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* Add new method "standardize" to the main Kashi class to perform standardize transformation (i.e. mean=0 and variance=1).

* Add new Cluster sub class "KashiCluster" where we implement k-means clustering method which aims to partition n observations into k clusters.

* Implement Hierarchical clustering technique also in the new "KashiCluster" sub class, currently only Euclidian and Manhattan similarity measures are available and Average Link as clustering method.

* ANOVA sub class is fully documented now.

  
What's new in Al-Kashi 2.1 (release date: Sep 15, 2012)
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* Add new method "inverseNormCDF" for inverse of the standard normal 
  cumulative distribution, with a given probability.

* Add new method "inverseTCDF" to calculate the t-value of the Student's 
  t-distribution for a given probability and degrees of freedom.

* Improve the LSD estimation in the ANOVA procedure by using 
  qt(0.975, error df) x SED instead of 2 x SED


What's new in Al-Kashi 2.0 (release date: Sep 10, 2012)
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* Add ANOVA sub class "KashiANOVA" which calculate ANOVA table, means,
  SE, SED, LSD, and CV values; It is built to be scalable data-analysis
  solution and this is why we used MySQL including two loading methods
  from array and string (i.e. file content).

Note: Column names ending in an exclamation mark (!) will have this 
      character removed and the column will be loaded as a factor. 


What's new in Al-Kashi 1.2 (release date: Jun 22, 2012)
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* Add Simpson index to the diversity method.


What's new in Al-Kashi 1.1 (release date: Mar 26, 2012)
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* This version has no need to connect to MySQL database anymore, thanks for
  Pavlos Stamboulides <pavlos@psychology.gr> for the idea.

* The chiDist method returns now exact probability value as float number.

* Add normCDF method to calculate the CDF value for normal distribution.


What's new in Al-Kashi 1.0 (release date: Mar 3, 2012)
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* First release :o)