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Exercise

Measure top decile lift

Compute and compare the top decile lift of the churn prediction models using the function TopDecileLift() in the lift package. The function takes two arguments:

  1. The true churn label in the test set, test_set$Future.
  2. The model prediction: a. For logistic regression, use the prediction from the predict function. b. For random forest, use the second column of the predictions from the predict function.

The objects firstPredictions, secondPredictions, thirdPredictions, and rfPredictions, and the package lifthave been loaded for you.

Which model has the highest top decile lift?

Instructions

50 XP

Possible answers