SI-CHAID is a program for performing CHAID (CHi-squared Automatic Interaction Detector) analyses. Results can be displayed simultaneously in the form of an intuitive tree diagram, crosstabulations, and a gains chart summary. The Define part of the program is used to set up a CHAID Definition (.chd) file with the File → New command, or alter the specifications of an existing .chd file with File → Open. The Explore part of the program allows you to grow or alter a SI-CHAID Tree, automatically or interactively, using the settings given in a previously saved (.chd) file. It can also be used to produce crosstabulations, gains charts, and if-then-else source code statements that can assist in scoring your data file.
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