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试用DataCamp for Business课程描述
先决条件
Introduction to Regression in R1
Regression Models: Fitting and Evaluating Their Performance
In the first chapter of this course, you'll fit regression models with
train() and evaluate their out-of-sample performance using cross-validation and root-mean-square error (RMSE).2
Classification Models: Fitting and Evaluating Their Performance
In this chapter, you'll fit classification models with
train() and evaluate their out-of-sample performance using cross-validation and area under the curve (AUC).3
Tuning Model Parameters to Improve Performance
In this chapter, you will use the
train() function to tweak model parameters through cross-validation and grid search.4
Preprocessing Data
In this chapter, you will practice using
train() to preprocess data before fitting models, improving your ability to making accurate predictions.5
Selecting Models: A Case Study in Churn Prediction
In the final chapter of this course, you'll learn how to use
resamples() to compare multiple models and select (or ensemble) the best one(s).Machine Learning with caret in R
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