CHAID algorithm

Information for CHAID algoritm (tree algorithm) and its implementation in R

http://www.public.iastate.edu/~kkoehler/stat557/tree14p.pdf
https://justinmary.files.wordpress.com/2014/05/final-chaid-handout.pdf
http://r-forge.r-project.org/R/?group_id=343

This is an algorith for categorical variables both for response and explanatory variables. For more general types of variables use ctree:
https://cran.r-project.org/web/packages/partykit/vignettes/ctree.pdf

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