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Describe how to create a decision tree.

  • Use the complete collection of data as your input.
  • Determine the entropy of the target variable and the characteristics of the predictors
  • Do the math to determine your information gain for all qualities (we gain information on sorting different objects from each other)
  • As the root node, pick the property with the greatest information gain.
  • until each branch's decision node is reached, carry out the same steps on each branch.
All Data Science interview questions

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