Gini Coefficient: Simple Definition

Information Gain, Gini Index, Entropy and Gain Ratio in Decision Trees| Analytics Steps

2. Gini Coefficient and Income Inequality (40 points).(a) Suppose 50% of a population all receive an equal share of $p\%$ of the nation's income,where 0 ≤ p ≤ 50. In other words, the top 50% of the population all receive an equalshare of (1 - p)% of the nation's income. For any such p, what is the Gini coefficient?Graph your results.(b) What is the effect of a higher p on Gini coefficient? What can you say about incomeinequality?(c) What happen if p = (1)/(2)? And how about p = 0? Interpret.(d)

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Gini Impurity and Entropy in Decision Tree - GeeksforGeeks

Select the correct order in which a decision tree is built:1. Calculate the Gini impurity after each split2. Decide the best split based on the lowest Gini impurity3. Repeat the complete process until the stopping criterion is reached or the tree has achieved homogeneity in leaves.4. Select an attribute of data and make all possible splits in data5. Repeat the steps for every attribute present in the data

Gini Koeffizient Interpretation