| Library: | kernel |
| See also: | cosi epa gau qua trian uni |
| Quantlet: | tri | |
| Description: | tri computes the triweight kernel, multivariate |
| Usage: | y = tri(x) | |
| Input: | ||
| x | n x p matrix containing the user-defined data at which the kernel is to be computed | |
| Output: | ||
| y | n x 1 matrix containg the density estimate | |
library("kernel")
x = aseq(-1.1, 110, 0.02)
y = tri(x)
t=createdisplay(1,1)
show(t,1,1,x~y)
The kernel is pictured