RubyGems.org

statsample

1.3.0

A suite for basic and advanced statistics on Ruby. Tested on Ruby 1.8.7, 1.9.1, 1.9.2 (April, 2010), ruby-head(June, 2011) and JRuby 1.4 (Ruby 1.8.7 compatible). Include: * Descriptive statistics: frequencies, median, mean, standard error, skew, kurtosis (and many others). * Imports and exports datasets from and to Excel, CSV and plain text files. * Correlations: Pearson's r, Spearman's rank correlation (rho), point biserial, tau a, tau b and gamma. Tetrachoric and Polychoric correlation provides by +statsample-bivariate-extension+ gem. * Intra-class correlation * Anova: generic and vector-based One-way ANOVA and Two-way ANOVA, with contrasts for One-way ANOVA. * Tests: F, T, Levene, U-Mannwhitney. * Regression: Simple, Multiple (OLS), Probit and Logit * Factorial Analysis: Extraction (PCA and Principal Axis), Rotation (Varimax, Equimax, Quartimax) and Parallel Analysis and Velicer's MAP test, for estimation of number of factors. * Reliability analysis for simple scale and a DSL to easily analyze multiple scales using factor analysis and correlations, if you want it. * Basic time series support * Dominance Analysis, with multivariate dependent and bootstrap (Azen & Budescu) * Sample calculation related formulas * Structural Equation Modeling (SEM), using R libraries +sem+ and +OpenMx+ * Creates reports on text, html and rtf, using ReportBuilder gem * Graphics: Histogram, Boxplot and Scatterplot

installgem install statsample -v 1.3.0
Authors

Claudio Bustos

131,096 total downloads 23,411 for this version
Owners

01a60a1c75e2260f04eb9ae7d332f8a3Fc779573e9087a3b7e83ae78a6214b25

Licenses

MIT

Gemfile
gem 'statsample', '~> 1.3.0'
Versions
  1. 1.4.0 October 11, 2014 (251 KB)
  2. 1.3.1 June 26, 2014 (263 KB)
  3. 1.3.0 September 20, 2013 (265 KB)
  4. 1.2.0 December 15, 2011 (268 KB)
  5. 1.1.0 June 2, 2011 (261 KB)
Show all versions (43 total)