A variance inflation factor (VIF) provides a measure of multicollinearity among the independent variables in a multiple regression model. Detecting multicollinearity is important because while ...

10.1 Kitchen sink model. We can extend the lm(y~x) function to construct a more complicated “formula” for the multi-dimensional model: lm(y ~ x1 + x2 + ... + xn ).This tells R to find the best model ...

Fig. 1a Venn's Diagram for the scenario where the correlation between covariates X and Z is small. Full size image. Figure 1b. ... In a multiple regression model with k covariates ...