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...r developing CART. But I'm not getting any document/help for using partykit/rpart. http://www.agrocampus-ouest.fr/math/useR-2009/slides/Hothorn+Zeileis.pdfgives some example, but it doesn't tell how my own data should be formatted so that it can be accepted by partykit. Example, data("GlaucomaM", package = "ipred") is accepted. Now instead of GlaucomaM, I need to give my own data. But the data format for GlaucomaM is not given. So how can I know that? Please help me in this. Thanks and Regards. - Indranil Basu, Bangalore, India [[alternative HTML version deleted]]

...lement based on the partykit infrastructure. Required Skills: Good R programming skills, depending on the complexity of the chosen algorithm C programming might be required as well. A basic understanding of statistics and machine learning would be helpful. Programming Exercise: Consider the "GlaucomaM" dataset from package ipred. Write a small R function that searches for the best binary split in variable "vari" when "Class" is the response variable. Implement any method you like but without using any add-on package.