| kernel-class {kernlab} | R Documentation |
The built-in kernel classes in kernlab
Objects can be created by calls of the form new("rbfkernel"),
new{"polykernel"}, new{"tanhkernel"},
new{"vanillakernel"}, new{"anovakernel"},
new{"besselkernel"}, new{"laplacekernel"},
new{"splinekernel"}, new{"stringkernel"}
or by calling the rbfdot, polydot, tanhdot,
vanilladot, anovadot, besseldot, laplacedot,
splinedot, stringdot functions etc..
.Data:"function" containing
the kernel function kpar:"list" containing the
kernel parameters
Class "kernel", directly.
Class "function", by class "kernel".
signature(kernel = "rbfkernel", x =
"matrix"): computes the kernel matrixsignature(kernel = "rbfkernel", x =
"matrix"): computes the quadratic kernel expressionsignature(kernel = "rbfkernel", x =
"matrix"): computes the kernel expansionsignature(kernel = "rbfkernel", x =
"matrix"),,a: computes parts or the full kernel matrix, mainly
used in kernel algorithms where columns of the kernel matrix are
computed per invocation
Alexandros Karatzoglou
alexandros.karatzoglou@ci.tuwien.ac.at
rbfkernel <- rbfdot(sigma = 0.1) rbfkernel is(rbfkernel) kpar(rbfkernel)