Information

The ca package offers functions for the computation and visualization of simple, multiple and joint correspondence analysis.

Download

Below you can download the current version of this package. Please keep in mind that work is still in progress.

• ca version 0.3-2 (again a pre-release, CRAN relase comin soon! Build on R 2.9.1.)
  - ca binary version (.zip, 131 KB)
  - ca source package (.tar.gz, 31 KB)
  
  
• ca version 0.3-1 (pre-release!)
  - ca binary version (.zip, 131 KB)
  - ca source package (.tar.gz, 31 KB)
  
  
• ca version 0.21 (2007/10/29)
  - ca binary version (.zip, 129 KB)
  - ca source package (.tar.gz, 29 KB)
  
  Changelog:
  - ca: fixed incorrect number of dimension in certain cases for the subset analysis
  - mjca: now also takes data frames as input
  - mjca: the 'sv' entry (i.e. mjca()$sv) now gives the singular values instead of the eigenvalues
  - summary.mjca: 'adjusted' now displays cumulated percentages ('cum%')
  - some fixes in the manual files (email address, methods in usage sections)

The 3d visualization within the ca package requires the rgl (Daniel Adler and Duncan Murdoch) package which you can download either from CRAN (http://cran.r-project.org) or from below:

• rgl version 0.69
  - rgl binary version (.zip, 814 KB)
  - rgl source package (.tar.gz, 1546 KB)
  

you can find more information on rgl at the rgl website.

Documentation

The ca package is described in

Nenadić, O., Greenacre, M. (2007): "Correspondence Analysis in R, with two- and three-dimensional graphics", Journal of Statistical Software, Special Volume on Psychometrics in R, 20(3), pp. 1-13.

You can download the paper from http://www.jstatsoft.org.

Version history

• ca version 0.2 (initial CRAN release, 2007/07/25)
  - ca binary version (.zip, 129 KB)
  - ca source package (.tar.gz, 29 KB)
  
• ca version 0.1-9 (initial public testing version)
  - ca binary version (.zip, 126 KB)
  - ca source package (.tar.gz, 28 KB)