Re: CRT Improvement Calculations

Posted by Alex Reutter on Jun 20, 2012; 4:23pm
URL: http://spssx-discussion.165.s1.nabble.com/CRT-Improvement-Calculations-tp5713722p5713723.html

Does the algorithms topic on the Gini criterion for C&RT help?
http://publib.boulder.ibm.com/infocenter/spssstat/v20r0m0/topic/com.ibm.spss.statistics.help/alg_tree-cart_split-criteria_categorical_gini.htm

The notation for the C&RT algorithms is explained at:
http://publib.boulder.ibm.com/infocenter/spssstat/v20r0m0/topic/com.ibm.spss.statistics.help/alg_tree-cart_notation.htm

...and there's more on C&RT and the other TREE algorithms if you browse the TOC from there.

Alex