Measuring the Test Performance

Tidyverse ile Machine Learning

Dmitriy (Dima) Gorenshteyn

Lead Data Scientist, Memorial Sloan Kettering Cancer Center

Machine Learning Workflow

Tidyverse ile Machine Learning

Machine Learning Workflow

Tidyverse ile Machine Learning

Machine Learning Workflow

Tidyverse ile Machine Learning

Machine Learning Workflow

Tidyverse ile Machine Learning

Machine Learning Workflow

Tidyverse ile Machine Learning

Machine Learning Workflow

Tidyverse ile Machine Learning

Machine Learning Workflow

Tidyverse ile Machine Learning

Machine Learning Workflow

Tidyverse ile Machine Learning

Measuring the Test Performance

best_model <- ranger(formula = life_expectancy~., 
                     data = training_data,
                     mtry = 4, num.trees = 100, seed = 42)

test_actual <- testing_data$life_expectancy
test_predict <- predict(best_model, testing_data)$predictions

mae(test_actual, test_predict)
Tidyverse ile Machine Learning

Let's practice!

Tidyverse ile Machine Learning

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