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R: Unleash Machine Learning Techniques by Cory Lesmeister, Brett Lantz, Dipanjan Sarkar, Raghav Bali

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Multivariate linear regression

You may be asking yourself the question if in the real world you would ever have just one predictor variable; that is, indeed, fair. Most likely, several, if not many, predictor variables or features, as they are affectionately termed in machine learning, will have to be included in your model. And with that, let's move on to multivariate linear regression and a new business case.

Business understanding

In keeping with the water conservation/prediction theme, let's look at another dataset in the alr3 package, appropriately named water. Lately, the severe drought in Southern California has caused much alarm. Even the Governor, Jerry Brown, has begun to take action with a call to citizens to reduce water usage by 20 ...

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