De testprestatie meten

Machine Learning in de tidyverse

Dmitriy (Dima) Gorenshteyn

Lead Data Scientist, Memorial Sloan Kettering Cancer Center

Machine Learning-workflow

Machine Learning in de tidyverse

Machine Learning-workflow

Machine Learning in de tidyverse

Machine Learning-workflow

Machine Learning in de tidyverse

Machine Learning-workflow

Machine Learning in de tidyverse

Machine Learning-workflow

Machine Learning in de tidyverse

Machine Learning-workflow

Machine Learning in de tidyverse

Machine Learning-workflow

Machine Learning in de tidyverse

Machine Learning-workflow

Machine Learning in de tidyverse

De testprestatie meten

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)
Machine Learning in de tidyverse

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Machine Learning in de tidyverse

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