We have discussed the basis of linear regression as fitting a straight line through a plot of data. However, there may be circumstances where the relationship between the variables is non-linear (i.e.

This example introduces the basic PROC REG graphics syntax used to produce a standard plot of data from the aerobic fitness data set (Example 55.1). A simple linear regression of Oxygen on RunTime is ...

Leverage plots are a generalization of partial-regression leverage plots, extending the idea to apply to general linear hypothesis tests. Leverage plots can show the point-by-point composition of the ...