CHAID stands for Chi-squared Automatic Interaction Detector. It is a method for building classification trees and regression trees from a training sample comprising already-classified objects.
Monthly Archives: July 2013
Illuminate, Iterate, Involve, Involvement, Iteration, Insight
I did not start off in the field of statistics; my first real job was as a diplomat. And from my undergraduate days I recall a professor who taught a cultural history of Russia. He was one of the world’s top experts. Possessed of a tremendous store of knowledge (a leading author in the field,Continue reading “Illuminate, Iterate, Involve, Involvement, Iteration, Insight”
Week # 29 – Training data
Also called the training sample, training set, calibration sample. The context is predictive modeling (also called supervised data mining) – where you have data with multiple predictor variables and a single known outcome or target variable.