Library: | kernel |
See also: | cosi epa gau tri trian uni |
Quantlet: | qua | |
Description: | qua computes the quartic kernel, multivariate |
Usage: | y = qua(x) | |
Input: | ||
x | n x p matrix containing the user-defined data at whicht the kernel is to be computed | |
Output: | ||
y | n x 1 matrix containing the density estimate |
library("kernel") x = aseq(-1, 50, 0.04) y = qua(x) t=createdisplay(1,1) show(t,1,1,x~y)
The kernel is pictured