Build final classification model
Comparing the recall performance between the logistic regression model (0.4) and the best performing random forest model (0.2), you've learned that the model with the best performance is the logistic regression model. In this exercise, you will build the logistic regression model using all of the train data and you will prepare the necessary vectors for evaluating this model's test performance.
Это упражнение является частью курса
Machine Learning in the Tidyverse
Инструкции к упражнению
- Build a logistic regression model predicting
Attritionusing all available features in thetraining_data. - Prepare the binary vector of actual test values,
test_actual. - Prepare the binary vector of predicted values where a probability greater than 0.5 indicates
TRUEand store this astest_predicted.
Интерактивное практическое упражнение
Попробуйте выполнить это упражнение, дополнив этот пример кода.
# Build the logistic regression model using all training data
best_model <- glm(formula = ___,
data = ___, family = "binomial")
# Prepare binary vector of actual Attrition values for testing_data
test_actual <- testing_data$___ == "___"
# Prepare binary vector of predicted Attrition values for testing_data
test_predicted <- predict(___, ___, type = "response") > ___