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R Statistical Application Development by Example Beginner's Guide by Prabhanjan Narayanachar Tattar

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Multiple linear regression model

In the The simple linear regression model section, we considered an almost (un)realistic problem of having only one predictor. We need to extend the model for the practical problems when one has more than a single predictor. In Example 3.2.9. Octane rating of gasoline blends we had a graphical study of mileage as a function of various vehicle variables. In this section, we will build a multiple linear regression model for the mileage.

If we have X1, X2, …, Xp independent set of variables which have a linear effect on the dependent variable Y, the multiple linear regression model is given by:

Multiple linear regression model

This model is similar to ...

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