CV, GCV & smoothing parameter (alpha) in p-spline?Hi everyone
please; how to calculate CV, GCV & smoothing parameter (alpha)
in penalized spline regression?
regards;
Re: CV, GCV & smoothing parameter (alpha) in p-spline?If you are referring to the P-spline models in the Functional Data Explorer, they are related to the multiple adaptive regressions splines. The GCV and penalty are described on that page.
See also JMP > Books > Predictive and Specialized Modeling > Functional Data Explorer.
Re: CV, GCV & smoothing parameter (alpha) in p-spline?Dear sir:
in the below shortcut, how to obtain of GCV and Smoothing parameter (with bandwidth auto-selected)
please, if you can help me.
I can do this in SAS & R (but I can't in Jmp pro 14.3).
best regardsRe: CV, GCV & smoothing parameter (alpha) in p-spline?First of all, splines model continuous data. Your response is obviously dichotomous, so you should use a method based on the binomial distribution such as logistic regression or the generalized linear model.
The measures that you asked about (e.g., GCV) are not available in the Bivariate platform. They are not available from Fit Least Squares either.
Re: CV, GCV & smoothing parameter (alpha) in p-spline?
Re: CV, GCV & smoothing parameter (alpha) in p-spline?dear sir;
How to use logistic regression or the generalized linear model (penalized splines), to get smoothing parameter & GCV in Jmp pro14.
please if you can help me with this.
hint:
(( I obtained all of these outputs using packages pspline in R))
best regards.
