extremefit (version 1.0.2)

Biweight.kernel: Biweight kernel function

Description

Biweight kernel function.

Usage

Biweight.kernel(x)

Arguments

x

a vector.

Details

Biweight kernel: $$ K(x) = 15/16 ( 1 - x^2 )^2 (abs(x)<=1) $$ We recommend a critical value of 7 for this kernel function.

Examples

# NOT RUN {
plot(function(x) Biweight.kernel(x),-2, 2,
main = " Biweight kernel ")

# }