how often is the gcv plot used how to plot an gcv how to compare spline models how many observations in a gcv function gcv how to compare what is the range comparing the different model of spline how to compare the different spline model how to compare gcv curve how to compare a gcv to a spline how to compare the spline model in the gcv gcv diagnostic plots definition gcv curve analysis gcv curve sigma how to compare different gcv curve which of the following is an example of the gcv function in a spline model? how does gcv plot compare what is the average gcv in a spline model what is gcv used for how to compare two gcv plots how to compare gcv plots