The Gini Index measure of impurity at a node is defined as the following: -P(Class = |X=a)
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The Gini Index measure of impurity at a node is defined as the following: -P(Class = |X=a)
a. Show that when there are two classes the maximum impurity occurs when both classes have probability .5 and the minimum impurity occurs when one class has probability
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Marketing Analytics: Data-Driven Techniques With Microsoft Excel
ISBN: 216520
1st Edition
Authors: Wayne L Winston
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