[R] GAMs in R : How to put the new data into the model?

Daniel Malter daniel at umd.edu
Wed Sep 28 07:31:08 CEST 2011

Your questions is pretty opaque. Please adhere to the posting guide. Provide
a self-contained (!) example (i.e., code) that reproduces your problem.
Generally, you would predict like this:



where you can substitute any vector of values for x


pigpigmeow wrote:
> I have 5  GAMs ( model1, model2, model3, model4 and model5)
> Before I use some data X(predictor -January to June data) to form a
> equation and calculate the expected value of Y (predictand -January to
> June). After variable selection, GAMs (Model 1)were bulit up! R-square
> :0.40
> NOW, I want to use new X'( predictor -July - December data) and put into
> Model 1, then get the expected value of Y' (predictand-July -December)
> I used mcgv package, what should I do now?

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