Assume that the entire sample has 4 positive observations and 2 negatives observations. Variable X1: at the left branch has 9 positive observations and 4 negatives observations; at the right branch has 8 positive observations and 8 negatives observations. What is the information gain or reduction in uncertainty of X1 using the Gini index?

Assume that the entire sample has 4 positive observations and 2 negatives observations. Variable X1: at the left branch has 9 positive observations and 4 negatives observations; at the right branch has 8 positive observations and 8 negatives observations. What is the information gain or reduction in uncertainty of X1 using the Gini index?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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