Kernel-target alignment

`KTA()` computes the alignment between a kernel matrix and a target variable.

Usage

KTA(K, y)

Arguments

K

A kernel matrix (class: "matrix").

y

The target variable. A numeric vector or a factor with two levels.

Value

Alignment value.

Examples

K1 <- RBF(iris[1:100,1:4],g=0.1)
y <- factor(iris[1:100,5])
KTA(K1,y)
#> Remember that Klist should contain only kernel matrices (i.e. squared, symmetric and PSD).
#>   This function does NOT verify the symmetry and PSD criteria.
#> [1] 0.4058431