inc.chol-class {kernlab}R Documentation

Class "inc.chol"

Description

The reduced Cholesky decomposition object

Objects from the Class

Objects can be created by calls of the form new("inc.chol", ...). or by calling the chol.reduce function.

Slots

.Data:
Object of class "matrix" contains the decomposed matrix
pivots:
Object of class "vector" contains the pivots performed
diag.residues:
Object of class "vector" contains the diagonial residues
maxresiduals:
Object of class "vector" contains the maximum residues

Extends

Class "matrix", directly.

Methods

diag.residues
signature(object = "inc.chol"): returns the diagonial residues
maxresiduals
signature(object = "inc.chol"): returns the maximum residues
pivots
signature(object = "inc.chol"): returns the pivots performed

Author(s)

Alexandros Karatzoglou
alexandros.karatzoglou@ci.tuwien.ac.at

See Also

chol.reduce

Examples

data(iris)
datamatrix <- as.matrix(iris[,-5])
# initialize kernel function
rbf <- rbfdot(sigma=0.1)
rbf
Z <- chol.reduce(datamatrix,kernel=rbf)
dim(Z)
pivots(Z)
diag.residues(Z)
maxresiduals(Z)

[Package kernlab version 0.4-4 Index]