Displaying 2 results from an estimated 2 matches for "sspl".
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2004 Nov 08
1
how lambda is computed in smoot.spline given _df_
Hi,
I posted some days ago a question concerning the computation of lambda in the smooth.spline function (which I repreat at the bottom of the mail) given _df_ .
Unfortunately the documentation is not clear to me. Maybee someone can help to answer in my view the basic question:
If the penalized log likelihood is L = (y - f)' W (y - f) + lambda c' Sigma c
how the _lambda_ in the above
2009 Apr 28
1
kernlab - custom kernel
hi,
I am using R's "kernlab" package, exactly i am doing classification using
ksvm(.) and predict.ksvm(.).I want use of custom kernel. I am getting some
error.
# Following R code works (with promotergene dataset):
library("kernlab")
s <- function(x, y) {
sum((x*y)^1.25)
}
class(s) <- "kernel"
data("promotergene")
gene <- ksvm(Class ~ .,