Kernel.quartic {spherepc}

Quartic kernel function

Description

This function returns the value of a quartic kernel function.

Usage

Kernel.quartic(vec)

Arguments

vec

any length of vector.

Details

This function returns the value of quartic kernel function. The value of kernel represents similarity from origin. The function returns a vector whose length is same as vec.

Value

vector.

Author(s)

Jongmin Lee

See Also

Kernel.Gaussian, Kernel.indicator.

Examples

Kernel.quartic(c(0, 1/2, 1, 2))