History.txt in statsample-0.5.1 vs History.txt in statsample-0.6.0

- old
+ new

@@ -1,5 +1,16 @@ +=== 0.6.0 / 2010-02-05 +* New Statsample::Factor module. Include classes for extracting factors (Statsample::Factor::PCA and Statsample::Factor::PrincipalAxis) and rotate component matrix ( Statsample::Factor::Rotation subclasses). For now, only orthogonal rotations +* New Statsample::Dataset.crosstab_with_asignation, Statsample::Dataset.one_to_many +* New class Statsample::Permutation to produce permutations of a given array +* New class Statsample::Histogram, with same interface as GSL one +* New class Statsample::Test::UMannWhitney, to perform Mann-Whitney's U test. Gives z based and exact calculation of probability +* Improved support for ReportBuilder +* Statsample::Codification module reworked +* Fixed bugs on Dominance Analysis classes +* Fixed bugs on Statsample::Vector.kurtosis and Statsample::Vector.skew + === 0.5.1 / 2009-10-06 * New class Statsample::Bivariate::Tetrachoric, for calculation of tetrachoric correlations. See http://www.john-uebersax.com/stat/tetra.htm for information. * New Statsample::Dataset.merge * New Statsample::Vector.dichotomize @@ -16,9 +27,10 @@ === 0.4.1 / 2009-09-12 * More methods and usage documentation * Logit tests * Bug fix: rescue for requires doesn't specify LoadError * Binomial::BaseEngine new methods: coeffs_se, coeffs, constant and constant_se + === 0.4.0 / 2009-09-10 * New Distribution module, based on statistics2.rb by Shin-ichiro HARA. Replaces all instances of GSL distributions pdf and cdf calculations for native calculation. * New Maximum Likehood Estimation for Logit, Probit and Normal Distribution using Von Tessin(2005) algorithm. See MLE class and subclasses for more information. * New Binomial regression subclasses (Logit and Probit), usign MLE class * Added tests for gsl, Distribution, MLE and Logit