Correspondence Analysis in Archaeology
  • Home
  • Guide by worked examples
    • Aim of Correspondence Analysis
    • Association between rows and columns
    • Number of dimensions useful for data interpretation
    • Interpreting the CA scatterplot: dimensions interpretation
    • Interpreting the CA scatterplot (continued): correlation between row profiles and dimensions
    • Quality of the representation
    • Assembling the whole picture
    • Extension: clustering rows and/or columns
    • Another worked example
  • References
  • CA in R
    • CAinterprTools (R package)
    • R function for various CA scatterplots
    • R function for improved CA scatterplot
    • R function for perceptual-map-like CA scatterplot
    • R function for plotting Pareto chart of categories contribution
    • R Script for CA
    • Additional R Script for CA
    • R Script for the Significance of CA's Dimensions
  • Other Tools for Statistics
    • R package for seriation via CA
    • R function for scalar-stress probability calculation
    • R function for post. prob. for different relations btw 2 Bayesian 14C phases
    • R function for Posterior Probability Density plot
    • R function for binary Logistic Regression
    • R function for binary Logistic Regression internal validation
    • R function for optimism-adjusted AUC
    • R function for Brainerd-Robinson similarity coefficient
    • R function for univariate outliers detection
    • R function for plotting Jenks natural breaks classification
    • R function for permutation-based Chi square test of independence
    • R function for permutation t-test
    • R function for visually displaying Mann-Whitney test
    • R function for visually displaying Kruskal-Wallis test
    • Kruskal-Wallis Excel Template
    • Chi-squared Excel Template
    • Excel Template for Robust Statistics
  • GIS
  • Blog
  • About me
  • Guestbook/Comments

Welcome to my site on Correspondence Analysis !

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This site aims at providing an introduction to Correspondence Analysis (CA) by means of archaeological worked examples.

The illustration of the technique provided in this site mainly relies on my article published in the 2013 issue of the peer-reviewed journal Archeologia e Calcolatori. You may want to download that article (open access) to benefit of an extended version of this guide.

The site also describes some functions and an R package (CAinterprTools) that provide many facilities for a visual aid to CA interpretation. The R package is described in an article published in Elsevier's SoftwareX journal (
http://dx.doi.org/10.1016/j.softx.2015.07.001).

Please note, the description of CA in this site is broken down into sections, which can be individually accessed from the page Guide by worked examples.

If you have any question, please do not hesitate to contact me via the contact form available from this same site. As of October 2016, you can also start a LIVE CHAT by using the widget that shows up at the bottom of almost all the pages of this site. I will try to answer you as soon as possible (allowing for time-zone differential). If you leave a message, but I am not online, please don't forget to leave your email address.

Feel free to leave comments and feedbacks via the Guestbook/Comments page. Many people already left their comments, which have been very appreciated :-)

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