2.2 The Statistical Sommelier: An Introduction to Linear Regression

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• 2.2.1Video 1: Predicting the Quality of Wine
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• 2.2.3Video 2: One-Variable Linear Regression
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• 2.2.5Video 3: Multiple Linear Regression
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• 2.2.7Video 4: Linear Regression in R
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• 2.2.9Video 5: Understanding the Model
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• 2.2.11Video 6: Correlation and Multicollinearity
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• 2.2.13Video 7: Making Predictions
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• 2.2.15Video 8: Comparing the Model to the Experts
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Video 4: Linear Regression in R

Before starting this video, please download the datasets wine (CSV) and wine_test (CSV). Save them to a folder on your computer that you will remember, and in R, navigate to this folder (File->Change dir... on a PC, and Misc->Change Working Directory on a Mac). This data comes from Liquid Assets.

A script file containing all of the R commands used in this lecture can be downloaded here: Unit2_WineRegression (R).

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