A Toolbox for Geometric Data Analysis and More

Contains functions for 'specific' Multiple Correspondence Analysis, Class Specific Analysis, Multiple Factor Analysis, 'standardized' MCA, computing and plotting structuring factors and concentration ellipses, inductive tests and others tools for Geometric Data Analysis (Le Roux & Rouanet (2005) ). It also provides functions for the translation of logit models coefficients into percentages (Deauvieau (2010) ), weighted contingency tables, an association measure for contingency tables ("Percentages of Maximum Deviation from Independence", aka PEM, see Cibois (1993) ) and some tools to measure bivariate associations between variables (phi, Cramr V, correlation coefficient, eta-squared...).


News

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Version 1.4

New functions:

  • translate.logit(): translates logit models coefficients into percentages
  • tabcontrib(): displays the categories contributing most to MCA dimensions

Changes in existing functions:

  • varsup(): with csMCA, the length of variable argument can be equal to the size of the cloud or the subcloud
  • textvarsup(): with csMCA, the length of variable argument can be equal to the size of the cloud or the subcloud
  • conc.ellipse(): with csMCA, the length of variable argument can be equal to the size of the cloud or the subcloud
  • plot.multiMCA(): 'threshold' argument, aimed at selecting the categories most associated to axes
  • plot.stMCA(): 'threshold' argument, aimed at selecting the categories most associated to axes

========

Version 1.3

Changes in existing functions:

  • dimdesc.MCA(): now uses weights

Bug fixes:

  • dimdesc.MCA(): problem of compatibility next to a FactoMineR update

========

Version 1.2

New functions:

  • dimvtest(): computes test-values for supplementary variables

Changes in existing functions:

  • dimeta2(): now allows 'stMCA' objects

========

Version 1.1

New functions:

  • wtable(): works as table() but allows weights and shows NAs as default
  • prop.wtable(): works as prop.table() but allows weights and shows NAs as default

Changes in existing functions:

  • multiMCA(): RV computation is now an option, with FALSE as default, which makes the function execute faster

Bug fixes:

  • textvarsup(): there was an error with the supplementary variable labels when resmca was of class "csMCA".

Error fixes:

  • textvarsup(): plots supplementary variables on the cloud of categories (and not the cloud of individuals as it was mentioned in help).

Reference manual

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install.packages("GDAtools")

1.5 by Nicolas Robette, 3 months ago


http://nicolas.robette.free.fr/outils_eng.html


Browse source code at https://github.com/cran/GDAtools


Authors: Nicolas Robette


Documentation:   PDF Manual  


GPL (>= 2) license


Imports FactoMineR, nleqslv, nnet, ggplot2, ggrepel, RColorBrewer, rlang, moreparty

Suggests cluster, WeightedCluster


Suggested by explor, moreparty, seqhandbook.


See at CRAN